23012201232131 has 4 divisors (see below), whose sum is σ = 23012365299264. Its totient is φ = 23012037165000.

The previous prime is 23012201232113. The next prime is 23012201232133. The reversal of 23012201232131 is 13123210221032.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23012201232131 is a prime.

It is a super-2 number, since 2×23012201232131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23012201232097 and 23012201232106.

It is not an unprimeable number, because it can be changed into a prime (23012201232133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81822995 + ... + 82103756.

It is an arithmetic number, because the mean of its divisors is an integer number (5753091324816).

Almost surely, 2^{23012201232131} is an apocalyptic number.

23012201232131 is a deficient number, since it is larger than the sum of its proper divisors (164067133).

23012201232131 is a wasteful number, since it uses less digits than its factorization.

23012201232131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164067132.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 23012201232131 its reverse (13123210221032), we get a palindrome (36135411453163).

The spelling of 23012201232131 in words is "twenty-three trillion, twelve billion, two hundred one million, two hundred thirty-two thousand, one hundred thirty-one".