232021402421 has 8 divisors (see below), whose sum is σ = 245102217600. Its totient is φ = 219027503520.

The previous prime is 232021402409. The next prime is 232021402537. The reversal of 232021402421 is 124204120232.

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 232021402421 - 2³⁴ = 214841533237 is a prime.

It is a super-2 number, since 2×232021402421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232021402121) 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, 21723581 + ... + 21734258.

It is an arithmetic number, because the mean of its divisors is an integer number (30637777200).

Almost surely, 2^232021402421 is an apocalyptic number.

It is an amenable number.

232021402421 is a deficient number, since it is larger than the sum of its proper divisors (13080815179).

232021402421 is a wasteful number, since it uses less digits than its factorization.

232021402421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43458139.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 232021402421 its reverse (124204120232), we get a palindrome (356225522653).

The spelling of 232021402421 in words is "two hundred thirty-two billion, twenty-one million, four hundred two thousand, four hundred twenty-one".