123201113444113 has 4 divisors (see below), whose sum is σ = 123201153848548. Its totient is φ = 123201073039680.

The previous prime is 123201113444009. The next prime is 123201113444119. The reversal of 123201113444113 is 311444311102321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1644490770129 + 121556622673984 = 1282377^2 + 11025272^2 .

It is a cyclic number.

It is not a de Polignac number, because 123201113444113 - 2²⁵ = 123201079889681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123201113444119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15218628 + ... + 21863413.

It is an arithmetic number, because the mean of its divisors is an integer number (30800288462137).

Almost surely, 2^{123201113444113} is an apocalyptic number.

It is an amenable number.

123201113444113 is a deficient number, since it is larger than the sum of its proper divisors (40404435).

123201113444113 is an equidigital number, since it uses as much as digits as its factorization.

123201113444113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40404434.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 123201113444113 its reverse (311444311102321), we get a palindrome (434645424546434).

The spelling of 123201113444113 in words is "one hundred twenty-three trillion, two hundred one billion, one hundred thirteen million, four hundred forty-four thousand, one hundred thirteen".