21032320102 has 16 divisors (see below), whose sum is σ = 32084890992. Its totient is φ = 10338295680.

The previous prime is 21032320081. The next prime is 21032320187. The reversal of 21032320102 is 20102323012.

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, 189799 + ... + 279442.

It is an arithmetic number, because the mean of its divisors is an integer number (2005305687).

Almost surely, 2^21032320102 is an apocalyptic number.

21032320102 is a deficient number, since it is larger than the sum of its proper divisors (11052570890).

21032320102 is a wasteful number, since it uses less digits than its factorization.

21032320102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469623.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21032320102 its reverse (20102323012), we get a palindrome (41134643114).

The spelling of 21032320102 in words is "twenty-one billion, thirty-two million, three hundred twenty thousand, one hundred two".