21230010432 has 84 divisors (see below), whose sum is σ = 61290006960. Its totient is φ = 7025732352.

The previous prime is 21230010419. The next prime is 21230010467. The reversal of 21230010432 is 23401003212.

21230010432 is a `hidden beast` number, since 2 + 1 + 230 + 0 + 1 + 0 + 432 = 666.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52518 + ... + 212645.

It is an arithmetic number, because the mean of its divisors is an integer number (729642940).

Almost surely, 2^21230010432 is an apocalyptic number.

It is an amenable number.

21230010432 is an abundant number, since it is smaller than the sum of its proper divisors (40059996528).

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

21230010432 is a wasteful number, since it uses less digits than its factorization.

21230010432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265320 (or 265307 counting only the distinct ones).

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

Adding to 21230010432 its reverse (23401003212), we get a palindrome (44631013644).

The spelling of 21230010432 in words is "twenty-one billion, two hundred thirty million, ten thousand, four hundred thirty-two".