312119513 has 2 divisors, whose sum is σ = 312119514. Its totient is φ = 312119512.

The previous prime is 312119503. The next prime is 312119539. The reversal of 312119513 is 315911213.

It is an a-pointer prime, because the next prime (312119539) can be obtained adding 312119513 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 279993289 + 32126224 = 16733^2 + 5668^2 .

It is a cyclic number.

It is not a de Polignac number, because 312119513 - 2¹⁰ = 312118489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312119503) 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, 156059756 + 156059757.

It is an arithmetic number, because the mean of its divisors is an integer number (156059757).

Almost surely, 2^312119513 is an apocalyptic number.

It is an amenable number.

312119513 is a deficient number, since it is larger than the sum of its proper divisors (1).

312119513 is an equidigital number, since it uses as much as digits as its factorization.

312119513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 810, while the sum is 26.

The square root of 312119513 is about 17666.9044543746. The cubic root of 312119513 is about 678.3288787982.

The spelling of 312119513 in words is "three hundred twelve million, one hundred nineteen thousand, five hundred thirteen".