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23101221013101 = 3471118120463533
BaseRepresentation
bin1010100000010101011000…
…00100101000011001101101
310000210110021210221000110000
411100022230010220121231
511011442300034404401
6121044315431134513
74603002535501320
oct520125404503155
9100713253830400
1023101221013101
1173a719a018050
122711208214439
13cb758859411a
1459c1684147b7
152a0db0b01186
hex1502ac12866d

23101221013101 has 80 divisors (see below), whose sum is σ = 43262202791808. Its totient is φ = 11934331862400.

The previous prime is 23101221013067. The next prime is 23101221013103. The reversal of 23101221013101 is 10131012210132.

23101221013101 is a `hidden beast` number, since 2 + 310 + 1 + 221 + 0 + 131 + 0 + 1 = 666.

It is not a de Polignac number, because 23101221013101 - 27 = 23101221012973 is a prime.

It is a super-2 number, since 2×231012210131012 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23101221013103) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9102870 + ... + 11360663.

Almost surely, 223101221013101 is an apocalyptic number.

23101221013101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23101221013101 is a deficient number, since it is larger than the sum of its proper divisors (20160981778707).

23101221013101 is a wasteful number, since it uses less digits than its factorization.

23101221013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20463744 (or 20463735 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 23101221013101 its reverse (10131012210132), we get a palindrome (33232233223233).

The spelling of 23101221013101 in words is "twenty-three trillion, one hundred one billion, two hundred twenty-one million, thirteen thousand, one hundred one".

Divisors: 1 3 7 9 11 21 27 33 63 77 81 99 181 189 231 297 543 567 693 891 1267 1629 1991 2079 3801 4887 5973 6237 11403 13937 14661 17919 34209 41811 53757 102627 125433 161271 376299 1128897 20463533 61390599 143244731 184171797 225098863 429734193 552515391 675296589 1289202579 1575692041 1657546173 2025889767 3703899473 3867607737 4727076123 6077669301 11111698419 11602823211 14181228369 18233007903 25927296311 33335095257 40742894203 42543685107 77781888933 100005285771 122228682609 127631055321 233345666799 285200259421 300015857313 366686047827 700037000397 855600778263 1100058143481 2100111001191 2566802334789 3300174430443 7700407004367 23101221013101