123223210112123 has 4 divisors (see below), whose sum is σ = 134425320122328. Its totient is φ = 112021100101920.

The previous prime is 123223210112113. The next prime is 123223210112141. The reversal of 123223210112123 is 321211012322321.

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 123223210112123 - 2¹⁸ = 123223209849979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123223210112092 and 123223210112101.

It is not an unprimeable number, because it can be changed into a prime (123223210112113) 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, 5601055005086 + ... + 5601055005107.

It is an arithmetic number, because the mean of its divisors is an integer number (33606330030582).

Almost surely, 2^{123223210112123} is an apocalyptic number.

123223210112123 is a deficient number, since it is larger than the sum of its proper divisors (11202110010205).

123223210112123 is a wasteful number, since it uses less digits than its factorization.

123223210112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11202110010204.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 123223210112123 its reverse (321211012322321), we get a palindrome (444434222434444).

The spelling of 123223210112123 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, two hundred ten million, one hundred twelve thousand, one hundred twenty-three".