312239490019 has 2 divisors, whose sum is σ = 312239490020. Its totient is φ = 312239490018.

The previous prime is 312239490007. The next prime is 312239490037. The reversal of 312239490019 is 910094932213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 312239490019 - 2⁵ = 312239489987 is a prime.

It is a super-2 number, since 2×312239490019² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (312239490419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156119745009 + 156119745010.

It is an arithmetic number, because the mean of its divisors is an integer number (156119745010).

Almost surely, 2^312239490019 is an apocalyptic number.

312239490019 is a deficient number, since it is larger than the sum of its proper divisors (1).

312239490019 is an equidigital number, since it uses as much as digits as its factorization.

312239490019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 312239490019 in words is "three hundred twelve billion, two hundred thirty-nine million, four hundred ninety thousand, nineteen".