123422957813 has 16 divisors (see below), whose sum is σ = 133485408000. Its totient is φ = 113672679936.

The previous prime is 123422957789. The next prime is 123422957839. The reversal of 123422957813 is 318759224321.

It is a cyclic number.

It is not a de Polignac number, because 123422957813 - 2⁸ = 123422957557 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123422957843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8381345 + ... + 8396057.

It is an arithmetic number, because the mean of its divisors is an integer number (8342838000).

Almost surely, 2^123422957813 is an apocalyptic number.

It is an amenable number.

123422957813 is a deficient number, since it is larger than the sum of its proper divisors (10062450187).

123422957813 is a wasteful number, since it uses less digits than its factorization.

123422957813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25276.

The product of its digits is 725760, while the sum is 47.

The spelling of 123422957813 in words is "one hundred twenty-three billion, four hundred twenty-two million, nine hundred fifty-seven thousand, eight hundred thirteen".