15120251120 has 40 divisors (see below), whose sum is σ = 37858785216. Its totient is φ = 5582861568.

The previous prime is 15120251099. The next prime is 15120251149. The reversal of 15120251120 is 2115202151.

15120251120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×15120251120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 15120251092 and 15120251101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7268312 + ... + 7270391.

Almost surely, 2^15120251120 is an apocalyptic number.

15120251120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15120251120 is an abundant number, since it is smaller than the sum of its proper divisors (22738534096).

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

15120251120 is a wasteful number, since it uses less digits than its factorization.

15120251120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14538729 (or 14538723 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 15120251120 its reverse (2115202151), we get a palindrome (17235453271).

The spelling of 15120251120 in words is "fifteen billion, one hundred twenty million, two hundred fifty-one thousand, one hundred twenty".