23331213432 has 256 divisors, whose sum is σ = 70356787200. Its totient is φ = 7233266304.

The previous prime is 23331213403. The next prime is 23331213443. The reversal of 23331213432 is 23431213332.

23331213432 is a `hidden beast` number, since 2 + 3 + 3 + 312 + 1 + 343 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 23331213396 and 23331213405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14888313 + ... + 14889879.

It is an arithmetic number, because the mean of its divisors is an integer number (274831200).

Almost surely, 2^23331213432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23331213432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35178393600).

23331213432 is an abundant number, since it is smaller than the sum of its proper divisors (47025573768).

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

23331213432 is a wasteful number, since it uses less digits than its factorization.

23331213432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1632 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 23331213432 its reverse (23431213332), we get a palindrome (46762426764).

The spelling of 23331213432 in words is "twenty-three billion, three hundred thirty-one million, two hundred thirteen thousand, four hundred thirty-two".