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1213100101030 = 25821556326561
BaseRepresentation
bin10001101001110010011…
…001101000110110100110
311021222020000212012020111
4101221302121220312212
5124333412111213110
62325142425123234
7153433515503266
oct21516231506646
94258200765214
101213100101030
11428522421974
1217713492951a
138a51963718c
1442a002ad7a6
152184ed11e8a
hex11a72668da6

1213100101030 has 32 divisors (see below), whose sum is σ = 2186715162528. Its totient is φ = 484543641600.

The previous prime is 1213100101021. The next prime is 1213100101033. The reversal of 1213100101030 is 301010013121.

It is a super-2 number, since 2×12131001010302 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1213100101030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213100101033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45658950 + ... + 45685510.

It is an arithmetic number, because the mean of its divisors is an integer number (68334848829).

Almost surely, 21213100101030 is an apocalyptic number.

1213100101030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213100101030 is a deficient number, since it is larger than the sum of its proper divisors (973615061498).

1213100101030 is a wasteful number, since it uses less digits than its factorization.

1213100101030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32952.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1213100101030 its reverse (301010013121), we get a palindrome (1514110114151).

The spelling of 1213100101030 in words is "one trillion, two hundred thirteen billion, one hundred million, one hundred one thousand, thirty".

Divisors: 1 2 5 10 821 1642 4105 5563 8210 11126 26561 27815 53122 55630 132805 265610 4567223 9134446 21806581 22836115 43613162 45672230 109032905 147758843 218065810 295517686 738794215 1477588430 121310010103 242620020206 606550050515 1213100101030