15723117120 has 112 divisors (see below), whose sum is σ = 52548373440. Its totient is φ = 3972151296.

The previous prime is 15723117119. The next prime is 15723117167. The reversal of 15723117120 is 2171132751.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 412767 + ... + 449246.

Almost surely, 2^15723117120 is an apocalyptic number.

15723117120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15723117120 is an abundant number, since it is smaller than the sum of its proper divisors (36825256320).

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

15723117120 is a wasteful number, since it uses less digits than its factorization.

15723117120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862052 (or 862042 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 30.

Adding to 15723117120 its reverse (2171132751), we get a palindrome (17894249871).

The spelling of 15723117120 in words is "fifteen billion, seven hundred twenty-three million, one hundred seventeen thousand, one hundred twenty".