312311093 has 2 divisors, whose sum is σ = 312311094. Its totient is φ = 312311092.

The previous prime is 312311071. The next prime is 312311123. The reversal of 312311093 is 390113213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 251127409 + 61183684 = 15847^2 + 7822^2 .

It is a cyclic number.

It is not a de Polignac number, because 312311093 - 2²⁰ = 311262517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312311893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156155546 + 156155547.

It is an arithmetic number, because the mean of its divisors is an integer number (156155547).

Almost surely, 2^312311093 is an apocalyptic number.

It is an amenable number.

312311093 is a deficient number, since it is larger than the sum of its proper divisors (1).

312311093 is an equidigital number, since it uses as much as digits as its factorization.

312311093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 312311093 is about 17672.3256251123. The cubic root of 312311093 is about 678.4676372561.

The spelling of 312311093 in words is "three hundred twelve million, three hundred eleven thousand, ninety-three".