123311231023201 has 8 divisors (see below), whose sum is σ = 133484776192040. Its totient is φ = 113235980977152.

The previous prime is 123311231023187. The next prime is 123311231023213. The reversal of 123311231023201 is 102320132113321.

It can be written as a sum of positive squares in 4 ways, for example, as 6245755720801 + 117065475302400 = 2499151^2 + 10819680^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123311231023201 - 2⁷ = 123311231023073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123311231023291) 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, 24573778086 + ... + 24573783103.

It is an arithmetic number, because the mean of its divisors is an integer number (16685597024005).

Almost surely, 2^{123311231023201} is an apocalyptic number.

It is an amenable number.

123311231023201 is a deficient number, since it is larger than the sum of its proper divisors (10173545168839).

123311231023201 is a wasteful number, since it uses less digits than its factorization.

123311231023201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49147561395.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 123311231023201 its reverse (102320132113321), we get a palindrome (225631363136522).

The spelling of 123311231023201 in words is "one hundred twenty-three trillion, three hundred eleven billion, two hundred thirty-one million, twenty-three thousand, two hundred one".