123044220103405 has 16 divisors (see below), whose sum is σ = 149739602828544. Its totient is φ = 97044478392960.

The previous prime is 123044220103397. The next prime is 123044220103421. The reversal of 123044220103405 is 504301022440321.

It is not a de Polignac number, because 123044220103405 - 2³ = 123044220103397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 302289 + ... + 15690118.

It is an arithmetic number, because the mean of its divisors is an integer number (9358725176784).

Almost surely, 2^{123044220103405} is an apocalyptic number.

It is an amenable number.

123044220103405 is a deficient number, since it is larger than the sum of its proper divisors (26695382725139).

123044220103405 is a wasteful number, since it uses less digits than its factorization.

123044220103405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16014156.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 123044220103405 its reverse (504301022440321), we get a palindrome (627345242543726).

The spelling of 123044220103405 in words is "one hundred twenty-three trillion, forty-four billion, two hundred twenty million, one hundred three thousand, four hundred five".