15120351420 has 48 divisors (see below), whose sum is σ = 42464946048. Its totient is φ = 4019906880.

The previous prime is 15120351371. The next prime is 15120351431. The reversal of 15120351420 is 2415302151.

It is a happy number.

It is a congruent number.

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, 360814 + ... + 400533.

It is an arithmetic number, because the mean of its divisors is an integer number (884686376).

Almost surely, 2^15120351420 is an apocalyptic number.

15120351420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15120351420 is an abundant number, since it is smaller than the sum of its proper divisors (27344594628).

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

15120351420 is a wasteful number, since it uses less digits than its factorization.

15120351420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761690 (or 761688 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 15120351420 its reverse (2415302151), we get a palindrome (17535653571).

The spelling of 15120351420 in words is "fifteen billion, one hundred twenty million, three hundred fifty-one thousand, four hundred twenty".