123320012002123 has 16 divisors (see below), whose sum is σ = 124153012638720. Its totient is φ = 122488654631904.

The previous prime is 123320012002073. The next prime is 123320012002127. The reversal of 123320012002123 is 321200210023321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123320012002123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123320012002094 and 123320012002103.

It is not an unprimeable number, because it can be changed into a prime (123320012002127) 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, 1095702790 + ... + 1095815332.

It is an arithmetic number, because the mean of its divisors is an integer number (7759563289920).

Almost surely, 2^{123320012002123} is an apocalyptic number.

123320012002123 is a deficient number, since it is larger than the sum of its proper divisors (833000636597).

123320012002123 is a wasteful number, since it uses less digits than its factorization.

123320012002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119778.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 123320012002123 its reverse (321200210023321), we get a palindrome (444520222025444).

The spelling of 123320012002123 in words is "one hundred twenty-three trillion, three hundred twenty billion, twelve million, two thousand, one hundred twenty-three".