123031333330109 has 2 divisors, whose sum is σ = 123031333330110. Its totient is φ = 123031333330108.

The previous prime is 123031333330079. The next prime is 123031333330123. The reversal of 123031333330109 is 901033333130321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108532015336900 + 14499317993209 = 10417870^2 + 3807797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123031333330109 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123031333330909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515666665054 + 61515666665055.

It is an arithmetic number, because the mean of its divisors is an integer number (61515666665055).

Almost surely, 2^{123031333330109} is an apocalyptic number.

It is an amenable number.

123031333330109 is a deficient number, since it is larger than the sum of its proper divisors (1).

123031333330109 is an equidigital number, since it uses as much as digits as its factorization.

123031333330109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 39366, while the sum is 35.

The spelling of 123031333330109 in words is "one hundred twenty-three trillion, thirty-one billion, three hundred thirty-three million, three hundred thirty thousand, one hundred nine".