21430014412 has 12 divisors (see below), whose sum is σ = 37503627616. Its totient is φ = 10714692240.

The previous prime is 21430014409. The next prime is 21430014427. The reversal of 21430014412 is 21441003412.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144958 + ... + 252730.

Almost surely, 2^21430014412 is an apocalyptic number.

It is an amenable number.

21430014412 is a deficient number, since it is larger than the sum of its proper divisors (16073613204).

21430014412 is a wasteful number, since it uses less digits than its factorization.

21430014412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157488 (or 157486 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21430014412 its reverse (21441003412), we get a palindrome (42871017824).

The spelling of 21430014412 in words is "twenty-one billion, four hundred thirty million, fourteen thousand, four hundred twelve".