123031101033123 has 4 divisors (see below), whose sum is σ = 164041468044168. Its totient is φ = 82020734022080.

The previous prime is 123031101033109. The next prime is 123031101033161. The reversal of 123031101033123 is 321330101130321.

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 123031101033123 - 2²⁴ = 123031084255907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123031101033093 and 123031101033102.

It is not an unprimeable number, because it can be changed into a prime (123031101033163) 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, 20505183505518 + ... + 20505183505523.

It is an arithmetic number, because the mean of its divisors is an integer number (41010367011042).

Almost surely, 2^{123031101033123} is an apocalyptic number.

123031101033123 is a deficient number, since it is larger than the sum of its proper divisors (41010367011045).

123031101033123 is an equidigital number, since it uses as much as digits as its factorization.

123031101033123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41010367011044.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 123031101033123 its reverse (321330101130321), we get a palindrome (444361202163444).

The spelling of 123031101033123 in words is "one hundred twenty-three trillion, thirty-one billion, one hundred one million, thirty-three thousand, one hundred twenty-three".