5111135051251 has 4 divisors (see below), whose sum is σ = 5113383683112. Its totient is φ = 5108886419392.

The previous prime is 5111135051227. The next prime is 5111135051257. The reversal of 5111135051251 is 1521505311115.

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

It is a cyclic number.

It is not a de Polignac number, because 5111135051251 - 2⁵ = 5111135051219 is a prime.

It is a super-2 number, since 2×5111135051251² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5111135051257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1124312521 + ... + 1124317066.

It is an arithmetic number, because the mean of its divisors is an integer number (1278345920778).

Almost surely, 2^{5111135051251} is an apocalyptic number.

5111135051251 is a deficient number, since it is larger than the sum of its proper divisors (2248631861).

5111135051251 is a wasteful number, since it uses less digits than its factorization.

5111135051251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2248631860.

The product of its (nonzero) digits is 3750, while the sum is 31.

The spelling of 5111135051251 in words is "five trillion, one hundred eleven billion, one hundred thirty-five million, fifty-one thousand, two hundred fifty-one".