123220123110231 has 32 divisors (see below), whose sum is σ = 189214307520000. Its totient is φ = 69868165507200.

The previous prime is 123220123110221. The next prime is 123220123110299. The reversal of 123220123110231 is 132011321022321.

It is not a de Polignac number, because 123220123110231 - 2¹⁰ = 123220123109207 is a prime.

It is a super-2 number, since 2×123220123110231² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123220123110221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5553856 + ... + 16651893.

It is an arithmetic number, because the mean of its divisors is an integer number (5912947110000).

Almost surely, 2^{123220123110231} is an apocalyptic number.

123220123110231 is a deficient number, since it is larger than the sum of its proper divisors (65994184409769).

123220123110231 is a wasteful number, since it uses less digits than its factorization.

123220123110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22207799.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 123220123110231 its reverse (132011321022321), we get a palindrome (255231444132552).

The spelling of 123220123110231 in words is "one hundred twenty-three trillion, two hundred twenty billion, one hundred twenty-three million, one hundred ten thousand, two hundred thirty-one".