23503205712 has 80 divisors (see below), whose sum is σ = 71265871232. Its totient is φ = 6533706240.

The previous prime is 23503205681. The next prime is 23503205767. The reversal of 23503205712 is 21750230532.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23503205712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 932839 + ... + 957702.

Almost surely, 2^23503205712 is an apocalyptic number.

It is an amenable number.

23503205712 is an abundant number, since it is smaller than the sum of its proper divisors (47762665520).

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

23503205712 is a wasteful number, since it uses less digits than its factorization.

23503205712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890596 (or 1890590 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The spelling of 23503205712 in words is "twenty-three billion, five hundred three million, two hundred five thousand, seven hundred twelve".