21320032414 has 16 divisors (see below), whose sum is σ = 32349112560. Its totient is φ = 10537067200.

The previous prime is 21320032387. The next prime is 21320032427. The reversal of 21320032414 is 41423002312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 642597 + ... + 674959.

It is an arithmetic number, because the mean of its divisors is an integer number (2021819535).

Almost surely, 2^21320032414 is an apocalyptic number.

21320032414 is a deficient number, since it is larger than the sum of its proper divisors (11029080146).

21320032414 is a wasteful number, since it uses less digits than its factorization.

21320032414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36155.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21320032414 its reverse (41423002312), we get a palindrome (62743034726).

The spelling of 21320032414 in words is "twenty-one billion, three hundred twenty million, thirty-two thousand, four hundred fourteen".