311555325252051 has 12 divisors (see below), whose sum is σ = 450025983448912. Its totient is φ = 207702800282736.

The previous prime is 311555325252049. The next prime is 311555325252097. The reversal of 311555325252051 is 150252523555113.

311555325252051 is a `hidden beast` number, since 3 + 1 + 1 + 5 + 5 + 53 + 2 + 525 + 20 + 51 = 666.

It is not a de Polignac number, because 311555325252051 - 2¹ = 311555325252049 is a prime.

It is a super-2 number, since 2×311555325252051² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311555325251988 and 311555325252006.

It is not an unprimeable number, because it can be changed into a prime (311555325052051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59853271 + ... + 64850016.

Almost surely, 2^{311555325252051} is an apocalyptic number.

311555325252051 is a deficient number, since it is larger than the sum of its proper divisors (138470658196861).

311555325252051 is a wasteful number, since it uses less digits than its factorization.

311555325252051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124980890 (or 124980887 counting only the distinct ones).

The product of its (nonzero) digits is 1125000, while the sum is 45.

The spelling of 311555325252051 in words is "three hundred eleven trillion, five hundred fifty-five billion, three hundred twenty-five million, two hundred fifty-two thousand, fifty-one".