123310100031329 has 2 divisors, whose sum is σ = 123310100031330. Its totient is φ = 123310100031328.

The previous prime is 123310100031229. The next prime is 123310100031353. The reversal of 123310100031329 is 923130001013321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122426590269025 + 883509762304 = 11064655^2 + 939952^2 .

It is an emirp because it is prime and its reverse (923130001013321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123310100031329 is a prime.

It is not a weakly prime, because it can be changed into another prime (123310100031379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655050015664 + 61655050015665.

It is an arithmetic number, because the mean of its divisors is an integer number (61655050015665).

Almost surely, 2^{123310100031329} is an apocalyptic number.

It is an amenable number.

123310100031329 is a deficient number, since it is larger than the sum of its proper divisors (1).

123310100031329 is an equidigital number, since it uses as much as digits as its factorization.

123310100031329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 123310100031329 in words is "one hundred twenty-three trillion, three hundred ten billion, one hundred million, thirty-one thousand, three hundred twenty-nine".