15120315412 has 24 divisors (see below), whose sum is σ = 26574518880. Its totient is φ = 7527659040.

The previous prime is 15120315409. The next prime is 15120315439. The reversal of 15120315412 is 21451302151.

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, 1018362 + ... + 1033102.

It is an arithmetic number, because the mean of its divisors is an integer number (1107271620).

Almost surely, 2^15120315412 is an apocalyptic number.

It is an amenable number.

15120315412 is a deficient number, since it is larger than the sum of its proper divisors (11454203468).

15120315412 is a wasteful number, since it uses less digits than its factorization.

15120315412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15831 (or 15829 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

Adding to 15120315412 its reverse (21451302151), we get a palindrome (36571617563).

The spelling of 15120315412 in words is "fifteen billion, one hundred twenty million, three hundred fifteen thousand, four hundred twelve".