51112111121115 has 64 divisors (see below), whose sum is σ = 89641411776000. Its totient is φ = 24662879539200.

The previous prime is 51112111121111. The next prime is 51112111121119.

It is a happy number.

51112111121115 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (51112111121111) and next prime (51112111121119).

It is not a de Polignac number, because 51112111121115 - 2² = 51112111121111 is a prime.

It is a super-2 number, since 2×51112111121115² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51112111121111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1149882411 + ... + 1149926859.

It is an arithmetic number, because the mean of its divisors is an integer number (1400647059000).

Almost surely, 2^{51112111121115} is an apocalyptic number.

51112111121115 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51112111121115 is a deficient number, since it is larger than the sum of its proper divisors (38529300654885).

51112111121115 is a wasteful number, since it uses less digits than its factorization.

51112111121115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77708.

The product of its digits is 100, while the sum is 24.

It can be divided in two parts, 5111211 and 1121115, that added together give a palindrome (6232326).

The spelling of 51112111121115 in words is "fifty-one trillion, one hundred twelve billion, one hundred eleven million, one hundred twenty-one thousand, one hundred fifteen".