123320201221121 has 8 divisors (see below), whose sum is σ = 128107278770688. Its totient is φ = 118617850708000.

The previous prime is 123320201221079. The next prime is 123320201221177. The reversal of 123320201221121 is 121122102023321.

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 123320201221121 - 2⁶ = 123320201221057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123320201220121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21181756145 + ... + 21181761966.

It is an arithmetic number, because the mean of its divisors is an integer number (16013409846336).

Almost surely, 2^{123320201221121} is an apocalyptic number.

It is an amenable number.

123320201221121 is a deficient number, since it is larger than the sum of its proper divisors (4787077549567).

123320201221121 is an equidigital number, since it uses as much as digits as its factorization.

123320201221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42363518223.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 123320201221121 its reverse (121122102023321), we get a palindrome (244442303244442).

The spelling of 123320201221121 in words is "one hundred twenty-three trillion, three hundred twenty billion, two hundred one million, two hundred twenty-one thousand, one hundred twenty-one".