312344311 has 2 divisors, whose sum is σ = 312344312. Its totient is φ = 312344310.

The previous prime is 312344309. The next prime is 312344327. The reversal of 312344311 is 113443213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312344311 - 2¹ = 312344309 is a prime.

It is a super-2 number, since 2×312344311² = 195117937228129442, which contains 22 as substring.

Together with 312344309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312344341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156172155 + 156172156.

It is an arithmetic number, because the mean of its divisors is an integer number (156172156).

Almost surely, 2^312344311 is an apocalyptic number.

312344311 is a deficient number, since it is larger than the sum of its proper divisors (1).

312344311 is an equidigital number, since it uses as much as digits as its factorization.

312344311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 312344311 is about 17673.2654311533. The cubic root of 312344311 is about 678.4916907714.

Adding to 312344311 its reverse (113443213), we get a palindrome (425787524).

The spelling of 312344311 in words is "three hundred twelve million, three hundred forty-four thousand, three hundred eleven".