123112122110103 has 8 divisors (see below), whose sum is σ = 187599424167808. Its totient is φ = 70349784062904.

The previous prime is 123112122110083. The next prime is 123112122110111. The reversal of 123112122110103 is 301011221211321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123112122110103 - 2²² = 123112117915799 is a prime.

It is a super-2 number, since 2×123112122110103² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5862482005243 = 123112122110103 / (1 + 2 + 3 + 1 + 1 + 2 + 1 + 2 + 2 + 1 + 1 + 0 + 1 + 0 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123112122110103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123112122110303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2931241002601 + ... + 2931241002642.

It is an arithmetic number, because the mean of its divisors is an integer number (23449928020976).

Almost surely, 2^{123112122110103} is an apocalyptic number.

123112122110103 is a deficient number, since it is larger than the sum of its proper divisors (64487302057705).

123112122110103 is an equidigital number, since it uses as much as digits as its factorization.

123112122110103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5862482005253.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 123112122110103 its reverse (301011221211321), we get a palindrome (424123343321424).

The spelling of 123112122110103 in words is "one hundred twenty-three trillion, one hundred twelve billion, one hundred twenty-two million, one hundred ten thousand, one hundred three".