313130999999977 has 2 divisors, whose sum is σ = 313130999999978. Its totient is φ = 313130999999976.

The previous prime is 313130999999959. The next prime is 313131000000083. The reversal of 313130999999977 is 779999999031313.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311191509265641 + 1939490734336 = 17640621^2 + 1392656^2 .

It is a cyclic number.

It is not a de Polignac number, because 313130999999977 - 2²⁷ = 313130865782249 is a prime.

It is not a weakly prime, because it can be changed into another prime (313130999999947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156565499999988 + 156565499999989.

It is an arithmetic number, because the mean of its divisors is an integer number (156565499999989).

Almost surely, 2^{313130999999977} is an apocalyptic number.

It is an amenable number.

313130999999977 is a deficient number, since it is larger than the sum of its proper divisors (1).

313130999999977 is an equidigital number, since it uses as much as digits as its factorization.

313130999999977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6327867987, while the sum is 88.

The spelling of 313130999999977 in words is "three hundred thirteen trillion, one hundred thirty billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred seventy-seven".