311374310247 has 480 divisors, whose sum is σ = 673786358784. Its totient is φ = 139102064640.

The previous prime is 311374310243. The next prime is 311374310287. The reversal of 311374310247 is 742013473113.

311374310247 is a `hidden beast` number, since 3 + 11 + 374 + 31 + 0 + 247 = 666.

It is not a de Polignac number, because 311374310247 - 2² = 311374310243 is a prime.

It is a super-2 number, since 2×311374310247² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311374310243) by changing a digit.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 882080023 + ... + 882080375.

Almost surely, 2^311374310247 is an apocalyptic number.

311374310247 is an abundant number, since it is smaller than the sum of its proper divisors (362412048537).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311374310247 is a wasteful number, since it uses less digits than its factorization.

311374310247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The spelling of 311374310247 in words is "three hundred eleven billion, three hundred seventy-four million, three hundred ten thousand, two hundred forty-seven".