51120402115 has 16 divisors (see below), whose sum is σ = 61485438528. Its totient is φ = 40802452096.

The previous prime is 51120402001. The next prime is 51120402131.

51120402115 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 51120402115 - 2²³ = 51112013507 is a prime.

It is a super-2 number, since 2×51120402115² (a number of 22 digits) contains 22 as substring.

It is a Duffinian 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, 4869402 + ... + 4879888.

It is an arithmetic number, because the mean of its divisors is an integer number (3842839908).

Almost surely, 2^51120402115 is an apocalyptic number.

51120402115 is a deficient number, since it is larger than the sum of its proper divisors (10365036413).

51120402115 is a wasteful number, since it uses less digits than its factorization.

51120402115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12638.

The product of its (nonzero) digits is 400, while the sum is 22.

The spelling of 51120402115 in words is "fifty-one billion, one hundred twenty million, four hundred two thousand, one hundred fifteen".