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23011100331 = 3181409103613
BaseRepresentation
bin10101011011100100…
…011000011010101011
32012101200110000101020
4111123210120122223
5334111320202311
614323211423523
71443144061032
oct253344303253
965350400336
1023011100331
11983919129a
124562454ba3
1322294777cb
14118417b719
158ea2a3c06
hex55b9186ab

23011100331 has 16 divisors (see below), whose sum is σ = 30926706720. Its totient is φ = 15218530560.

The previous prime is 23011100297. The next prime is 23011100339. The reversal of 23011100331 is 13300111032.

It is not a de Polignac number, because 23011100331 - 230 = 21937358507 is a prime.

It is a super-2 number, since 2×230111003312 (a number of 22 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 23011100331.

It is not an unprimeable number, because it can be changed into a prime (23011100339) 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, 170281 + ... + 273893.

It is an arithmetic number, because the mean of its divisors is an integer number (1932919170).

Almost surely, 223011100331 is an apocalyptic number.

23011100331 is a deficient number, since it is larger than the sum of its proper divisors (7915606389).

23011100331 is a wasteful number, since it uses less digits than its factorization.

23011100331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104206.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 23011100331 its reverse (13300111032), we get a palindrome (36311211363).

The spelling of 23011100331 in words is "twenty-three billion, eleven million, one hundred thousand, three hundred thirty-one".

Divisors: 1 3 181 409 543 1227 74029 103613 222087 310839 18753953 42377717 56261859 127133151 7670366777 23011100331