123023321031221 has 8 divisors (see below), whose sum is σ = 140279985972504. Its totient is φ = 106879989312000.

The previous prime is 123023321031089. The next prime is 123023321031253. The reversal of 123023321031221 is 122130123320321.

It can be written as a sum of positive squares in 4 ways, for example, as 113947428721 + 122909373602500 = 337561^2 + 11086450^2 .

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 123023321031221 - 2¹⁸ = 123023320769077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123023321231221) 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, 278333305280 + ... + 278333305721.

It is an arithmetic number, because the mean of its divisors is an integer number (17534998246563).

Almost surely, 2^{123023321031221} is an apocalyptic number.

It is an amenable number.

123023321031221 is a deficient number, since it is larger than the sum of its proper divisors (17256664941283).

123023321031221 is a wasteful number, since it uses less digits than its factorization.

123023321031221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556666611031.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 123023321031221 its reverse (122130123320321), we get a palindrome (245153444351542).

The spelling of 123023321031221 in words is "one hundred twenty-three trillion, twenty-three billion, three hundred twenty-one million, thirty-one thousand, two hundred twenty-one".