21430003412 has 24 divisors (see below), whose sum is σ = 39717659520. Its totient is φ = 10082390400.

The previous prime is 21430003403. The next prime is 21430003433.

21430003412 is nontrivially palindromic in base 10.

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, 282389 + ... + 350147.

It is an arithmetic number, because the mean of its divisors is an integer number (1654902480).

Almost surely, 2^21430003412 is an apocalyptic number.

It is an amenable number.

21430003412 is a deficient number, since it is larger than the sum of its proper divisors (18287656108).

21430003412 is a wasteful number, since it uses less digits than its factorization.

21430003412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72431 (or 72429 counting only the distinct ones).

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

It can be divided in two parts, 2143000 and 3412, that added together give a palindrome (2146412).

The spelling of 21430003412 in words is "twenty-one billion, four hundred thirty million, three thousand, four hundred twelve".