313012120189 has 2 divisors, whose sum is σ = 313012120190. Its totient is φ = 313012120188.

The previous prime is 313012120139. The next prime is 313012120229. The reversal of 313012120189 is 981021210313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 206895800164 + 106116320025 = 454858^2 + 325755^2 .

It is a cyclic number.

It is not a de Polignac number, because 313012120189 - 2⁹ = 313012119677 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313012120189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313012120139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156506060094 + 156506060095.

It is an arithmetic number, because the mean of its divisors is an integer number (156506060095).

Almost surely, 2^313012120189 is an apocalyptic number.

It is an amenable number.

313012120189 is a deficient number, since it is larger than the sum of its proper divisors (1).

313012120189 is an equidigital number, since it uses as much as digits as its factorization.

313012120189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 313012120189 in words is "three hundred thirteen billion, twelve million, one hundred twenty thousand, one hundred eighty-nine".