123120031302203 has 16 divisors (see below), whose sum is σ = 134081735235840. Its totient is φ = 112371339565056.

The previous prime is 123120031302197. The next prime is 123120031302241. The reversal of 123120031302203 is 302203130021321.

It is not a de Polignac number, because 123120031302203 - 2²² = 123120027107899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123120031302403) 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, 158778251 + ... + 159551787.

It is an arithmetic number, because the mean of its divisors is an integer number (8380108452240).

Almost surely, 2^{123120031302203} is an apocalyptic number.

123120031302203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123120031302203 is a deficient number, since it is larger than the sum of its proper divisors (10961703933637).

123120031302203 is a wasteful number, since it uses less digits than its factorization.

123120031302203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911206.

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

Adding to 123120031302203 its reverse (302203130021321), we get a palindrome (425323161323524).

The spelling of 123120031302203 in words is "one hundred twenty-three trillion, one hundred twenty billion, thirty-one million, three hundred two thousand, two hundred three".