21433440130 has 32 divisors (see below), whose sum is σ = 39054960000. Its totient is φ = 8468076672.

The previous prime is 21433440121. The next prime is 21433440167. The reversal of 21433440130 is 3104433412.

It is a junction number, because it is equal to n+sod(n) for n = 21433440095 and 21433440104.

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 15 ways as a sum of consecutive naturals, for example, 862621 + ... + 887119.

It is an arithmetic number, because the mean of its divisors is an integer number (1220467500).

Almost surely, 2^21433440130 is an apocalyptic number.

21433440130 is a deficient number, since it is larger than the sum of its proper divisors (17621519870).

21433440130 is a wasteful number, since it uses less digits than its factorization.

21433440130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25578.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 21433440130 its reverse (3104433412), we get a palindrome (24537873542).

The spelling of 21433440130 in words is "twenty-one billion, four hundred thirty-three million, four hundred forty thousand, one hundred thirty".