123031302002123 has 4 divisors (see below), whose sum is σ = 123031528772568. Its totient is φ = 123031075231680.

The previous prime is 123031302002107. The next prime is 123031302002143. The reversal of 123031302002123 is 321200203130321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123031302002123 - 2⁴ = 123031302002107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123031302002143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112569461 + ... + 113657142.

It is an arithmetic number, because the mean of its divisors is an integer number (30757882193142).

Almost surely, 2^{123031302002123} is an apocalyptic number.

123031302002123 is a deficient number, since it is larger than the sum of its proper divisors (226770445).

123031302002123 is an equidigital number, since it uses as much as digits as its factorization.

123031302002123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226770444.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123031302002123 its reverse (321200203130321), we get a palindrome (444231505132444).

The spelling of 123031302002123 in words is "one hundred twenty-three trillion, thirty-one billion, three hundred two million, two thousand, one hundred twenty-three".