15120044051 has 4 divisors (see below), whose sum is σ = 17280050352. Its totient is φ = 12960037752.

The previous prime is 15120044039. The next prime is 15120044053. The reversal of 15120044051 is 15044002151.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15120044051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15120044053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080003140 + ... + 1080003153.

It is an arithmetic number, because the mean of its divisors is an integer number (4320012588).

Almost surely, 2^15120044051 is an apocalyptic number.

15120044051 is a deficient number, since it is larger than the sum of its proper divisors (2160006301).

15120044051 is an equidigital number, since it uses as much as digits as its factorization.

15120044051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160006300.

The product of its (nonzero) digits is 800, while the sum is 23.

The spelling of 15120044051 in words is "fifteen billion, one hundred twenty million, forty-four thousand, fifty-one".