23331240432 has 160 divisors (see below), whose sum is σ = 68128853760. Its totient is φ = 7643600640.

The previous prime is 23331240397. The next prime is 23331240463. The reversal of 23331240432 is 23404213332.

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

It is a junction number, because it is equal to n+sod(n) for n = 23331240396 and 23331240405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6053418 + ... + 6057270.

It is an arithmetic number, because the mean of its divisors is an integer number (425805336).

Almost surely, 2^23331240432 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 23331240432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34064426880).

23331240432 is an abundant number, since it is smaller than the sum of its proper divisors (44797613328).

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

23331240432 is a wasteful number, since it uses less digits than its factorization.

23331240432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108 (or 4096 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 23331240432 its reverse (23404213332), we get a palindrome (46735453764).

The spelling of 23331240432 in words is "twenty-three billion, three hundred thirty-one million, two hundred forty thousand, four hundred thirty-two".