21430010432 has 28 divisors (see below), whose sum is σ = 44374100736. Its totient is φ = 10249134720.

The previous prime is 21430010423. The next prime is 21430010473. The reversal of 21430010432 is 23401003412.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7277744 + ... + 7280687.

It is an arithmetic number, because the mean of its divisors is an integer number (1584789312).

Almost surely, 2^21430010432 is an apocalyptic number.

It is an amenable number.

21430010432 is an abundant number, since it is smaller than the sum of its proper divisors (22944090304).

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

21430010432 is a wasteful number, since it uses less digits than its factorization.

21430010432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14558466 (or 14558456 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 21430010432 its reverse (23401003412), we get a palindrome (44831013844).

The spelling of 21430010432 in words is "twenty-one billion, four hundred thirty million, ten thousand, four hundred thirty-two".