123342420300421 has 24 divisors (see below), whose sum is σ = 145298567905920. Its totient is φ = 104382090775872.

The previous prime is 123342420300389. The next prime is 123342420300433. The reversal of 123342420300421 is 124003024243321.

It is not a de Polignac number, because 123342420300421 - 2⁵ = 123342420300389 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 (123342420330421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 268793646 + ... + 269252128.

It is an arithmetic number, because the mean of its divisors is an integer number (6054106996080).

Almost surely, 2^{123342420300421} is an apocalyptic number.

It is an amenable number.

123342420300421 is a deficient number, since it is larger than the sum of its proper divisors (21956147605499).

123342420300421 is an equidigital number, since it uses as much as digits as its factorization.

123342420300421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528073 (or 528066 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 123342420300421 its reverse (124003024243321), we get a palindrome (247345444543742).

The spelling of 123342420300421 in words is "one hundred twenty-three trillion, three hundred forty-two billion, four hundred twenty million, three hundred thousand, four hundred twenty-one".