310493431 has 2 divisors, whose sum is σ = 310493432. Its totient is φ = 310493430.

The previous prime is 310493387. The next prime is 310493441. The reversal of 310493431 is 134394013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 310493431 - 2¹³ = 310485239 is a prime.

It is a super-2 number, since 2×310493431² = 192812341388303522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 310493431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (310493441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155246715 + 155246716.

It is an arithmetic number, because the mean of its divisors is an integer number (155246716).

Almost surely, 2^310493431 is an apocalyptic number.

310493431 is a deficient number, since it is larger than the sum of its proper divisors (1).

310493431 is an equidigital number, since it uses as much as digits as its factorization.

310493431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 310493431 is about 17620.8237889152. The cubic root of 310493431 is about 677.1488399551.

The spelling of 310493431 in words is "three hundred ten million, four hundred ninety-three thousand, four hundred thirty-one".