123204122140399 has 2 divisors, whose sum is σ = 123204122140400. Its totient is φ = 123204122140398.

The previous prime is 123204122140381. The next prime is 123204122140417. The reversal of 123204122140399 is 993041221402321.

It is a balanced prime because it is at equal distance from previous prime (123204122140381) and next prime (123204122140417).

It is a cyclic number.

It is not a de Polignac number, because 123204122140399 - 2²⁷ = 123203987922671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123204122140699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61602061070199 + 61602061070200.

It is an arithmetic number, because the mean of its divisors is an integer number (61602061070200).

Almost surely, 2^{123204122140399} is an apocalyptic number.

123204122140399 is a deficient number, since it is larger than the sum of its proper divisors (1).

123204122140399 is an equidigital number, since it uses as much as digits as its factorization.

123204122140399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 123204122140399 in words is "one hundred twenty-three trillion, two hundred four billion, one hundred twenty-two million, one hundred forty thousand, three hundred ninety-nine".