123023242320421 has 8 divisors (see below), whose sum is σ = 128372654963520. Its totient is φ = 117673877679072.

The previous prime is 123023242320367. The next prime is 123023242320481. The reversal of 123023242320421 is 124023242320321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123023242320421 - 2²¹ = 123023240223269 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 (123023242320481) 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, 6713655 + ... + 17062228.

It is an arithmetic number, because the mean of its divisors is an integer number (16046581870440).

Almost surely, 2^{123023242320421} is an apocalyptic number.

It is an amenable number.

123023242320421 is a deficient number, since it is larger than the sum of its proper divisors (5349412643099).

123023242320421 is a wasteful number, since it uses less digits than its factorization.

123023242320421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24000875.

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

Adding to 123023242320421 its reverse (124023242320321), we get a palindrome (247046484640742).

The spelling of 123023242320421 in words is "one hundred twenty-three trillion, twenty-three billion, two hundred forty-two million, three hundred twenty thousand, four hundred twenty-one".