7939316123 has 2 divisors, whose sum is σ = 7939316124. Its totient is φ = 7939316122.

The previous prime is 7939316087. The next prime is 7939316141. The reversal of 7939316123 is 3216139397.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7939316123 - 2¹⁸ = 7939053979 is a prime.

It is a super-2 number, since 2×7939316123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7939316023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3969658061 + 3969658062.

It is an arithmetic number, because the mean of its divisors is an integer number (3969658062).

Almost surely, 2^7939316123 is an apocalyptic number.

7939316123 is a deficient number, since it is larger than the sum of its proper divisors (1).

7939316123 is an equidigital number, since it uses as much as digits as its factorization.

7939316123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 183708, while the sum is 44.

The square root of 7939316123 is about 89102.8401511422. The cubic root of 7939316123 is about 1994.9301695187.

The spelling of 7939316123 in words is "seven billion, nine hundred thirty-nine million, three hundred sixteen thousand, one hundred twenty-three".