312502434289 has 2 divisors, whose sum is σ = 312502434290. Its totient is φ = 312502434288.

The previous prime is 312502434263. The next prime is 312502434371. The reversal of 312502434289 is 982434205213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219297397264 + 93205037025 = 468292^2 + 305295^2 .

It is a cyclic number.

It is not a de Polignac number, because 312502434289 - 2⁹ = 312502433777 is a prime.

It is not a weakly prime, because it can be changed into another prime (312502434239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156251217144 + 156251217145.

It is an arithmetic number, because the mean of its divisors is an integer number (156251217145).

Almost surely, 2^312502434289 is an apocalyptic number.

It is an amenable number.

312502434289 is a deficient number, since it is larger than the sum of its proper divisors (1).

312502434289 is an equidigital number, since it uses as much as digits as its factorization.

312502434289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 312502434289 in words is "three hundred twelve billion, five hundred two million, four hundred thirty-four thousand, two hundred eighty-nine".