313023013101989 has 2 divisors, whose sum is σ = 313023013101990. Its totient is φ = 313023013101988.

The previous prime is 313023013101949. The next prime is 313023013102003. The reversal of 313023013101989 is 989101310320313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207797126128900 + 105225886973089 = 14415170^2 + 10257967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313023013101989 is a prime.

It is a super-2 number, since 2×313023013101989² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313023013101949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156511506550994 + 156511506550995.

It is an arithmetic number, because the mean of its divisors is an integer number (156511506550995).

Almost surely, 2^{313023013101989} is an apocalyptic number.

It is an amenable number.

313023013101989 is a deficient number, since it is larger than the sum of its proper divisors (1).

313023013101989 is an equidigital number, since it uses as much as digits as its factorization.

313023013101989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The spelling of 313023013101989 in words is "three hundred thirteen trillion, twenty-three billion, thirteen million, one hundred one thousand, nine hundred eighty-nine".