123221021121023 has 8 divisors (see below), whose sum is σ = 141227531373600. Its totient is φ = 105315387677280.

The previous prime is 123221021120959. The next prime is 123221021121049. The reversal of 123221021121023 is 320121120122321.

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 123221021121023 - 2⁶ = 123221021120959 is a prime.

It is a super-2 number, since 2×123221021121023² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123221021121023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123221021121323) 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 7 ways as a sum of consecutive naturals, for example, 25219199588 + ... + 25219204473.

It is an arithmetic number, because the mean of its divisors is an integer number (17653441421700).

Almost surely, 2^{123221021121023} is an apocalyptic number.

123221021121023 is a deficient number, since it is larger than the sum of its proper divisors (18006510252577).

123221021121023 is an equidigital number, since it uses as much as digits as its factorization.

123221021121023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50438404417.

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

Adding to 123221021121023 its reverse (320121120122321), we get a palindrome (443342141243344).

The spelling of 123221021121023 in words is "one hundred twenty-three trillion, two hundred twenty-one billion, twenty-one million, one hundred twenty-one thousand, twenty-three".