23215017724 has 12 divisors (see below), whose sum is σ = 40918557400. Its totient is φ = 11524001328.

The previous prime is 23215017713. The next prime is 23215017739. The reversal of 23215017724 is 42771051232.

It is a self number, because there is not a number n which added to its sum of digits gives 23215017724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20876259 + ... + 20877370.

Almost surely, 2^23215017724 is an apocalyptic number.

It is an amenable number.

23215017724 is a deficient number, since it is larger than the sum of its proper divisors (17703539676).

23215017724 is a wasteful number, since it uses less digits than its factorization.

23215017724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41753772 (or 41753770 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 34.

Adding to 23215017724 its reverse (42771051232), we get a palindrome (65986068956).

The spelling of 23215017724 in words is "twenty-three billion, two hundred fifteen million, seventeen thousand, seven hundred twenty-four".