319923115943 has 2 divisors, whose sum is σ = 319923115944. Its totient is φ = 319923115942.

The previous prime is 319923115891. The next prime is 319923115949. The reversal of 319923115943 is 349511329913.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 319923115943 - 2⁶ = 319923115879 is a prime.

It is a super-2 number, since 2×319923115943² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 319923115891 and 319923115900.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319923115949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159961557971 + 159961557972.

It is an arithmetic number, because the mean of its divisors is an integer number (159961557972).

Almost surely, 2^319923115943 is an apocalyptic number.

319923115943 is a deficient number, since it is larger than the sum of its proper divisors (1).

319923115943 is an equidigital number, since it uses as much as digits as its factorization.

319923115943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 50.

The spelling of 319923115943 in words is "three hundred nineteen billion, nine hundred twenty-three million, one hundred fifteen thousand, nine hundred forty-three".