311932313 has 12 divisors (see below), whose sum is σ = 391849920. Its totient is φ = 243063480.

The previous prime is 311932297. The next prime is 311932331. The reversal of 311932313 is 313239113.

It is not a de Polignac number, because 311932313 - 2⁴ = 311932297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311932393) 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, 183293 + ... + 184986.

It is an arithmetic number, because the mean of its divisors is an integer number (32654160).

Almost surely, 2^311932313 is an apocalyptic number.

It is an amenable number.

311932313 is a deficient number, since it is larger than the sum of its proper divisors (79917607).

311932313 is a wasteful number, since it uses less digits than its factorization.

311932313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368308 (or 368297 counting only the distinct ones).

The product of its digits is 1458, while the sum is 26.

The square root of 311932313 is about 17661.6056178367. The cubic root of 311932313 is about 678.1932378485.

The spelling of 311932313 in words is "three hundred eleven million, nine hundred thirty-two thousand, three hundred thirteen".