312053891137 has 2 divisors, whose sum is σ = 312053891138. Its totient is φ = 312053891136.

The previous prime is 312053891129. The next prime is 312053891147. The reversal of 312053891137 is 731198350213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215889400321 + 96164490816 = 464639^2 + 310104^2 .

It is a cyclic number.

It is not a de Polignac number, because 312053891137 - 2³ = 312053891129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 312053891093 and 312053891102.

It is not a weakly prime, because it can be changed into another prime (312053891147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156026945568 + 156026945569.

It is an arithmetic number, because the mean of its divisors is an integer number (156026945569).

Almost surely, 2^312053891137 is an apocalyptic number.

It is an amenable number.

312053891137 is a deficient number, since it is larger than the sum of its proper divisors (1).

312053891137 is an equidigital number, since it uses as much as digits as its factorization.

312053891137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 43.

The spelling of 312053891137 in words is "three hundred twelve billion, fifty-three million, eight hundred ninety-one thousand, one hundred thirty-seven".