313023210309989 has 2 divisors, whose sum is σ = 313023210309990. Its totient is φ = 313023210309988.

The previous prime is 313023210309967. The next prime is 313023210310003. The reversal of 313023210309989 is 989903012320313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305881141133764 + 7142069176225 = 17489458^2 + 2672465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313023210309989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313023210309989.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313023210359989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156511605154994 + 156511605154995.

It is an arithmetic number, because the mean of its divisors is an integer number (156511605154995).

Almost surely, 2^{313023210309989} is an apocalyptic number.

It is an amenable number.

313023210309989 is a deficient number, since it is larger than the sum of its proper divisors (1).

313023210309989 is an equidigital number, since it uses as much as digits as its factorization.

313023210309989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 53.

The spelling of 313023210309989 in words is "three hundred thirteen trillion, twenty-three billion, two hundred ten million, three hundred nine thousand, nine hundred eighty-nine".