20321310200 has 48 divisors (see below), whose sum is σ = 48524011080. Its totient is φ = 7908831360.

The previous prime is 20321310173. The next prime is 20321310319. The reversal of 20321310200 is 201312302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1365662 + ... + 1380461.

Almost surely, 2^20321310200 is an apocalyptic number.

20321310200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20321310200 is an abundant number, since it is smaller than the sum of its proper divisors (28202700880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20321310200 is a wasteful number, since it uses less digits than its factorization.

20321310200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746176 (or 2746167 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20321310200 its reverse (201312302), we get a palindrome (20522622502).

The spelling of 20321310200 in words is "twenty billion, three hundred twenty-one million, three hundred ten thousand, two hundred".