23451531213 has 16 divisors (see below), whose sum is σ = 34754930496. Its totient is φ = 13944877440.

The previous prime is 23451531197. The next prime is 23451531287. The reversal of 23451531213 is 31213515432.

It is not a de Polignac number, because 23451531213 - 2⁴ = 23451531197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23451531113) 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 15 ways as a sum of consecutive naturals, for example, 6702520 + ... + 6706017.

It is an arithmetic number, because the mean of its divisors is an integer number (2172183156).

Almost surely, 2^23451531213 is an apocalyptic number.

It is an amenable number.

23451531213 is a deficient number, since it is larger than the sum of its proper divisors (11303399283).

23451531213 is a wasteful number, since it uses less digits than its factorization.

23451531213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13408604.

The product of its digits is 10800, while the sum is 30.

The spelling of 23451531213 in words is "twenty-three billion, four hundred fifty-one million, five hundred thirty-one thousand, two hundred thirteen".