51112421115 has 32 divisors (see below), whose sum is σ = 95370124800. Its totient is φ = 23365675872.

The previous prime is 51112421083. The next prime is 51112421137.

51112421115 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51112421115 - 2⁵ = 51112421083 is a prime.

It is a super-2 number, since 2×51112421115² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4962049 + ... + 4972338.

It is an arithmetic number, because the mean of its divisors is an integer number (2980316400).

Almost surely, 2^51112421115 is an apocalyptic number.

51112421115 is a deficient number, since it is larger than the sum of its proper divisors (44257703685).

51112421115 is an equidigital number, since it uses as much as digits as its factorization.

51112421115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9934416 (or 9934402 counting only the distinct ones).

The product of its digits is 400, while the sum is 24.

The spelling of 51112421115 in words is "fifty-one billion, one hundred twelve million, four hundred twenty-one thousand, one hundred fifteen".