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23113012011020 = 2251497756044299
BaseRepresentation
bin1010100000101011010101…
…10111101110000000001100
310000211120201112202202211122
411100111222313232000030
511012140422033323040
6121053545433140112
74603600661355461
oct520255267560014
9100746645682748
1023113012011020
11740119a7a8328
122713558b5a638
13cb871733c079
1459c966389668
152a1350d3a1b5
hex15056adee00c

23113012011020 has 24 divisors (see below), whose sum is σ = 48863079090000. Its totient is φ = 9183156448832.

The previous prime is 23113012010983. The next prime is 23113012011071. The reversal of 23113012011020 is 2011021031132.

It is a super-2 number, since 2×231130120110202 (a number of 28 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 23113012011020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3878019170 + ... + 3878025129.

It is an arithmetic number, because the mean of its divisors is an integer number (2035961628750).

Almost surely, 223113012011020 is an apocalyptic number.

23113012011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23113012011020 is an abundant number, since it is smaller than the sum of its proper divisors (25750067078980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23113012011020 is a wasteful number, since it uses less digits than its factorization.

23113012011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7756044457 (or 7756044455 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 23113012011020 its reverse (2011021031132), we get a palindrome (25124033042152).

The spelling of 23113012011020 in words is "twenty-three trillion, one hundred thirteen billion, twelve million, eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 149 298 596 745 1490 2980 7756044299 15512088598 31024177196 38780221495 77560442990 155120885980 1155650600551 2311301201102 4622602402204 5778253002755 11556506005510 23113012011020