312557300109 has 6 divisors (see below), whose sum is σ = 451471655726. Its totient is φ = 208371533400.

The previous prime is 312557300071. The next prime is 312557300117. The reversal of 312557300109 is 901003755213.

It can be written as a sum of positive squares in only one way, i.e., 220357014084 + 92200286025 = 469422^2 + 303645^2 .

It is not a de Polignac number, because 312557300109 - 2⁷ = 312557299981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312557370109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17364294442 + ... + 17364294459.

Almost surely, 2^312557300109 is an apocalyptic number.

It is an amenable number.

312557300109 is a deficient number, since it is larger than the sum of its proper divisors (138914355617).

312557300109 is a wasteful number, since it uses less digits than its factorization.

312557300109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34728588907 (or 34728588904 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The spelling of 312557300109 in words is "three hundred twelve billion, five hundred fifty-seven million, three hundred thousand, one hundred nine".