311152313 has 2 divisors, whose sum is σ = 311152314. Its totient is φ = 311152312.

The previous prime is 311152307. The next prime is 311152327. The reversal of 311152313 is 313251113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 301647424 + 9504889 = 17368^2 + 3083^2 .

It is a cyclic number.

It is not a de Polignac number, because 311152313 - 2¹² = 311148217 is a prime.

It is not a weakly prime, because it can be changed into another prime (311152613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155576156 + 155576157.

It is an arithmetic number, because the mean of its divisors is an integer number (155576157).

Almost surely, 2^311152313 is an apocalyptic number.

It is an amenable number.

311152313 is a deficient number, since it is larger than the sum of its proper divisors (1).

311152313 is an equidigital number, since it uses as much as digits as its factorization.

311152313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270, while the sum is 20.

The square root of 311152313 is about 17639.5099988633. The cubic root of 311152313 is about 677.6274823536.

The spelling of 311152313 in words is "three hundred eleven million, one hundred fifty-two thousand, three hundred thirteen".