23031311111312 has 20 divisors (see below), whose sum is σ = 50997903175296. Its totient is φ = 9870561904800.

The previous prime is 23031311111279. The next prime is 23031311111317. The reversal of 23031311111312 is 21311111313032.

It is a super-2 number, since 2×23031311111312² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23031311111317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102818353064 + ... + 102818353287.

Almost surely, 2^{23031311111312} is an apocalyptic number.

It is an amenable number.

23031311111312 is an abundant number, since it is smaller than the sum of its proper divisors (27966592063984).

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

23031311111312 is a wasteful number, since it uses less digits than its factorization.

23031311111312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205636706366 (or 205636706360 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 23031311111312 its reverse (21311111313032), we get a palindrome (44342422424344).

The spelling of 23031311111312 in words is "twenty-three trillion, thirty-one billion, three hundred eleven million, one hundred eleven thousand, three hundred twelve".