311323111002 has 96 divisors (see below), whose sum is σ = 682669587600. Its totient is φ = 102533160960.

The previous prime is 311323110997. The next prime is 311323111019. The reversal of 311323111002 is 200111323113.

311323111002 is a `hidden beast` number, since 311 + 32 + 311 + 10 + 0 + 2 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 55923263361 + 255399847641 = 236481^2 + 505371^2 .

It is a super-2 number, since 2×311323111002² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 558928108 + ... + 558928664.

Almost surely, 2^311323111002 is an apocalyptic number.

311323111002 is an abundant number, since it is smaller than the sum of its proper divisors (371346476598).

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

311323111002 is a wasteful number, since it uses less digits than its factorization.

311323111002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1568 (or 1565 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 311323111002 its reverse (200111323113), we get a palindrome (511434434115).

The spelling of 311323111002 in words is "three hundred eleven billion, three hundred twenty-three million, one hundred eleven thousand, two".