123340010423021 has 32 divisors (see below), whose sum is σ = 149331967511040. Its totient is φ = 99585488876544.

The previous prime is 123340010422997. The next prime is 123340010423033. The reversal of 123340010423021 is 120324010043321.

It is a cyclic number.

It is not a de Polignac number, because 123340010423021 - 2²² = 123340006228717 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 (123340010423041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360776 + ... + 15710193.

It is an arithmetic number, because the mean of its divisors is an integer number (4666623984720).

Almost surely, 2^{123340010423021} is an apocalyptic number.

It is an amenable number.

123340010423021 is a deficient number, since it is larger than the sum of its proper divisors (25991957088019).

123340010423021 is a wasteful number, since it uses less digits than its factorization.

123340010423021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16071725.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 123340010423021 its reverse (120324010043321), we get a palindrome (243664020466342).

The spelling of 123340010423021 in words is "one hundred twenty-three trillion, three hundred forty billion, ten million, four hundred twenty-three thousand, twenty-one".