311042093 has 2 divisors, whose sum is σ = 311042094. Its totient is φ = 311042092.

The previous prime is 311042057. The next prime is 311042129. The reversal of 311042093 is 390240113.

It is a balanced prime because it is at equal distance from previous prime (311042057) and next prime (311042129).

It can be written as a sum of positive squares in only one way, i.e., 309654409 + 1387684 = 17597^2 + 1178^2 .

It is a cyclic number.

It is not a de Polignac number, because 311042093 - 2⁶ = 311042029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311042033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155521046 + 155521047.

It is an arithmetic number, because the mean of its divisors is an integer number (155521047).

Almost surely, 2^311042093 is an apocalyptic number.

It is an amenable number.

311042093 is a deficient number, since it is larger than the sum of its proper divisors (1).

311042093 is an equidigital number, since it uses as much as digits as its factorization.

311042093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 311042093 is about 17636.3854856941. The cubic root of 311042093 is about 677.5474605351.

The spelling of 311042093 in words is "three hundred eleven million, forty-two thousand, ninety-three".