20321113210 has 8 divisors (see below), whose sum is σ = 36578003796. Its totient is φ = 8128445280.

The previous prime is 20321113207. The next prime is 20321113283. The reversal of 20321113210 is 1231112302.

It can be written as a sum of positive squares in 2 ways, for example, as 20129650641 + 191462569 = 141879^2 + 13837^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1016055651 + ... + 1016055670.

Almost surely, 2^20321113210 is an apocalyptic number.

20321113210 is a deficient number, since it is larger than the sum of its proper divisors (16256890586).

20321113210 is a wasteful number, since it uses less digits than its factorization.

20321113210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032111328.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20321113210 its reverse (1231112302), we get a palindrome (21552225512).

The spelling of 20321113210 in words is "twenty billion, three hundred twenty-one million, one hundred thirteen thousand, two hundred ten".