123424041444021 has 8 divisors (see below), whose sum is σ = 182850431768960. Its totient is φ = 82282694295996.

The previous prime is 123424041444019. The next prime is 123424041444043. The reversal of 123424041444021 is 120444140424321.

123424041444021 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 240 + 4 + 1 + 4 + 4 + 402 + 1 = 666.

It is not a de Polignac number, because 123424041444021 - 2¹ = 123424041444019 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 (123424041444071) 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, 2285630397085 + ... + 2285630397138.

It is an arithmetic number, because the mean of its divisors is an integer number (22856303971120).

Almost surely, 2^{123424041444021} is an apocalyptic number.

It is an amenable number.

123424041444021 is a deficient number, since it is larger than the sum of its proper divisors (59426390324939).

123424041444021 is an equidigital number, since it uses as much as digits as its factorization.

123424041444021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4571260794232 (or 4571260794226 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 36.

Adding to 123424041444021 its reverse (120444140424321), we get a palindrome (243868181868342).

The spelling of 123424041444021 in words is "one hundred twenty-three trillion, four hundred twenty-four billion, forty-one million, four hundred forty-four thousand, twenty-one".