23215153012 has 24 divisors (see below), whose sum is σ = 43021790280. Its totient is φ = 10923386880.

The previous prime is 23215153001. The next prime is 23215153057. The reversal of 23215153012 is 21035151232.

It can be written as a sum of positive squares in 4 ways, for example, as 10395025936 + 12820127076 = 101956^2 + 113226^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683062 + ... + 716242.

It is an arithmetic number, because the mean of its divisors is an integer number (1792574595).

Almost surely, 2^23215153012 is an apocalyptic number.

It is an amenable number.

23215153012 is a deficient number, since it is larger than the sum of its proper divisors (19806637268).

23215153012 is a wasteful number, since it uses less digits than its factorization.

23215153012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43491 (or 43489 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The spelling of 23215153012 in words is "twenty-three billion, two hundred fifteen million, one hundred fifty-three thousand, twelve".