23513320634432 has 56 divisors (see below), whose sum is σ = 48988606071360. Its totient is φ = 11181836413440.

The previous prime is 23513320634423. The next prime is 23513320634437. The reversal of 23513320634432 is 23443602331532.

It is a self number, because there is not a number n which added to its sum of digits gives 23513320634432.

It is not an unprimeable number, because it can be changed into a prime (23513320634437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94419044 + ... + 94667747.

Almost surely, 2^{23513320634432} is an apocalyptic number.

It is an amenable number.

23513320634432 is an abundant number, since it is smaller than the sum of its proper divisors (25475285436928).

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

23513320634432 is a wasteful number, since it uses less digits than its factorization.

23513320634432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189086899 (or 189086889 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 41.

Adding to 23513320634432 its reverse (23443602331532), we get a palindrome (46956922965964).

The spelling of 23513320634432 in words is "twenty-three trillion, five hundred thirteen billion, three hundred twenty million, six hundred thirty-four thousand, four hundred thirty-two".