51121012115 has 16 divisors (see below), whose sum is σ = 64960600320. Its totient is φ = 38512332000.

The previous prime is 51121012079. The next prime is 51121012133.

51121012115 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 51121012115 - 2¹⁶ = 51120946579 is a prime.

It is a super-2 number, since 2×51121012115² (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 15 ways as a sum of consecutive naturals, for example, 1595261 + ... + 1626990.

It is an arithmetic number, because the mean of its divisors is an integer number (4060037520).

Almost surely, 2^51121012115 is an apocalyptic number.

51121012115 is a deficient number, since it is larger than the sum of its proper divisors (13839588205).

51121012115 is a wasteful number, since it uses less digits than its factorization.

51121012115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222442.

The product of its (nonzero) digits is 100, while the sum is 20.

It can be divided in two parts, 511210 and 12115, that added together give a palindrome (523325).

The spelling of 51121012115 in words is "fifty-one billion, one hundred twenty-one million, twelve thousand, one hundred fifteen".