311013233012 has 48 divisors (see below), whose sum is σ = 564537758400. Its totient is φ = 149823717120.

The previous prime is 311013232997. The next prime is 311013233029. The reversal of 311013233012 is 210332310113.

It is a super-2 number, since 2×311013233012² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 6420539 + ... + 6468797.

It is an arithmetic number, because the mean of its divisors is an integer number (11761203300).

Almost surely, 2^311013233012 is an apocalyptic number.

It is an amenable number.

311013233012 is a deficient number, since it is larger than the sum of its proper divisors (253524525388).

311013233012 is a wasteful number, since it uses less digits than its factorization.

311013233012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48816 (or 48814 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 311013233012 its reverse (210332310113), we get a palindrome (521345543125).

The spelling of 311013233012 in words is "three hundred eleven billion, thirteen million, two hundred thirty-three thousand, twelve".