232121230420 has 24 divisors (see below), whose sum is σ = 487919313000. Its totient is φ = 92759972352.

The previous prime is 232121230403. The next prime is 232121230447. The reversal of 232121230420 is 24032121232.

232121230420 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11194909636 + 220926320784 = 105806^2 + 470028^2 .

It is a super-2 number, since 2×232121230420² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 232121230391 and 232121230400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5510985 + ... + 5552944.

It is an arithmetic number, because the mean of its divisors is an integer number (20329971375).

Almost surely, 2^232121230420 is an apocalyptic number.

232121230420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

232121230420 is an abundant number, since it is smaller than the sum of its proper divisors (255798082580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

232121230420 is a wasteful number, since it uses less digits than its factorization.

232121230420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11064987 (or 11064985 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 232121230420 its reverse (24032121232), we get a palindrome (256153351652).

The spelling of 232121230420 in words is "two hundred thirty-two billion, one hundred twenty-one million, two hundred thirty thousand, four hundred twenty".