12401230403021 has 8 divisors (see below), whose sum is σ = 12690511563840. Its totient is φ = 12111989262912.

The previous prime is 12401230403017. The next prime is 12401230403033. The reversal of 12401230403021 is 12030403210421.

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 12401230403021 - 2² = 12401230403017 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 (12401230493021) 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, 9377756 + ... + 10618133.

It is an arithmetic number, because the mean of its divisors is an integer number (1586313945480).

Almost surely, 2^{12401230403021} is an apocalyptic number.

It is an amenable number.

12401230403021 is a deficient number, since it is larger than the sum of its proper divisors (289281160819).

12401230403021 is a wasteful number, since it uses less digits than its factorization.

12401230403021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20010355.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12401230403021 its reverse (12030403210421), we get a palindrome (24431633613442).

The spelling of 12401230403021 in words is "twelve trillion, four hundred one billion, two hundred thirty million, four hundred three thousand, twenty-one".