313312440187 has 2 divisors, whose sum is σ = 313312440188. Its totient is φ = 313312440186.

The previous prime is 313312440173. The next prime is 313312440223. The reversal of 313312440187 is 781044213313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 313312440187 - 2⁷ = 313312440059 is a prime.

It is not a weakly prime, because it can be changed into another prime (313312440107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156656220093 + 156656220094.

It is an arithmetic number, because the mean of its divisors is an integer number (156656220094).

Almost surely, 2^313312440187 is an apocalyptic number.

313312440187 is a deficient number, since it is larger than the sum of its proper divisors (1).

313312440187 is an equidigital number, since it uses as much as digits as its factorization.

313312440187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 313312440187 in words is "three hundred thirteen billion, three hundred twelve million, four hundred forty thousand, one hundred eighty-seven".