311313283 has 2 divisors, whose sum is σ = 311313284. Its totient is φ = 311313282.

The previous prime is 311313269. The next prime is 311313293. The reversal of 311313283 is 382313113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311313283 - 2²⁵ = 277758851 is a prime.

It is not a weakly prime, because it can be changed into another prime (311313293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155656641 + 155656642.

It is an arithmetic number, because the mean of its divisors is an integer number (155656642).

Almost surely, 2^311313283 is an apocalyptic number.

311313283 is a deficient number, since it is larger than the sum of its proper divisors (1).

311313283 is an equidigital number, since it uses as much as digits as its factorization.

311313283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 311313283 is about 17644.0721773631. The cubic root of 311313283 is about 677.7443156930.

Adding to 311313283 its reverse (382313113), we get a palindrome (693626396).

The spelling of 311313283 in words is "three hundred eleven million, three hundred thirteen thousand, two hundred eighty-three".