23431213432 has 96 divisors (see below), whose sum is σ = 49545840960. Its totient is φ = 10375833600.

The previous prime is 23431213417. The next prime is 23431213447.

It is a happy number.

23431213432 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (23431213417) and next prime (23431213447).

It is a self number, because there is not a number n which added to its sum of digits gives 23431213432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10963468 + ... + 10965604.

It is an arithmetic number, because the mean of its divisors is an integer number (516102510).

Almost surely, 2^23431213432 is an apocalyptic number.

23431213432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23431213432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24772920480).

23431213432 is an abundant number, since it is smaller than the sum of its proper divisors (26114627528).

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

23431213432 is a wasteful number, since it uses less digits than its factorization.

23431213432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453 (or 2438 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The spelling of 23431213432 in words is "twenty-three billion, four hundred thirty-one million, two hundred thirteen thousand, four hundred thirty-two".