23455251131 has 4 divisors (see below), whose sum is σ = 25259501232. Its totient is φ = 21651001032.

The previous prime is 23455251107. The next prime is 23455251133. The reversal of 23455251131 is 13115255432.

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-23455251131 is a prime.

It is a super-2 number, since 2×23455251131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23455251133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902125031 + ... + 902125056.

It is an arithmetic number, because the mean of its divisors is an integer number (6314875308).

Almost surely, 2^23455251131 is an apocalyptic number.

23455251131 is a deficient number, since it is larger than the sum of its proper divisors (1804250101).

23455251131 is a wasteful number, since it uses less digits than its factorization.

23455251131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804250100.

The product of its digits is 18000, while the sum is 32.

The spelling of 23455251131 in words is "twenty-three billion, four hundred fifty-five million, two hundred fifty-one thousand, one hundred thirty-one".