21232010232 has 48 divisors (see below), whose sum is σ = 57634434000. Its totient is φ = 7061204736.

The previous prime is 21232010231. The next prime is 21232010273. The reversal of 21232010232 is 23201023212.

21232010232 is a `hidden beast` number, since 212 + 320 + 102 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232010231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304257 + ... + 367472.

It is an arithmetic number, because the mean of its divisors is an integer number (1200717375).

Almost surely, 2^21232010232 is an apocalyptic number.

It is an amenable number.

21232010232 is an abundant number, since it is smaller than the sum of its proper divisors (36402423768).

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

21232010232 is a wasteful number, since it uses less digits than its factorization.

21232010232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672180 (or 672173 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 21232010232 its reverse (23201023212), we get a palindrome (44433033444).

The spelling of 21232010232 in words is "twenty-one billion, two hundred thirty-two million, ten thousand, two hundred thirty-two".