123413723123 has 2 divisors, whose sum is σ = 123413723124. Its totient is φ = 123413723122.

The previous prime is 123413723099. The next prime is 123413723197. The reversal of 123413723123 is 321327314321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123413723123 - 2³⁰ = 122339981299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123413723123.

It is not a weakly prime, because it can be changed into another prime (123413726123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61706861561 + 61706861562.

It is an arithmetic number, because the mean of its divisors is an integer number (61706861562).

Almost surely, 2^123413723123 is an apocalyptic number.

123413723123 is a deficient number, since it is larger than the sum of its proper divisors (1).

123413723123 is an equidigital number, since it uses as much as digits as its factorization.

123413723123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 32.

The spelling of 123413723123 in words is "one hundred twenty-three billion, four hundred thirteen million, seven hundred twenty-three thousand, one hundred twenty-three".