23011122013131 has 32 divisors (see below), whose sum is σ = 35297857866240. Its totient is φ = 13061927983104.

The previous prime is 23011122013123. The next prime is 23011122013181. The reversal of 23011122013131 is 13131022111032.

It is not a de Polignac number, because 23011122013131 - 2³ = 23011122013123 is a prime.

It is a super-2 number, since 2×23011122013131² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23011122013098 and 23011122013107.

It is not an unprimeable number, because it can be changed into a prime (23011122013111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1388136 + ... + 6924533.

It is an arithmetic number, because the mean of its divisors is an integer number (1103058058320).

Almost surely, 2^{23011122013131} is an apocalyptic number.

23011122013131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23011122013131 is a deficient number, since it is larger than the sum of its proper divisors (12286735853109).

23011122013131 is a wasteful number, since it uses less digits than its factorization.

23011122013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8313555.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 23011122013131 its reverse (13131022111032), we get a palindrome (36142144124163).

The spelling of 23011122013131 in words is "twenty-three trillion, eleven billion, one hundred twenty-two million, thirteen thousand, one hundred thirty-one".