20321313200 has 60 divisors (see below), whose sum is σ = 51391550760. Its totient is φ = 7700705280.

The previous prime is 20321313193. The next prime is 20321313241. The reversal of 20321313200 is 231312302.

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, 1329329 + ... + 1344528.

It is an arithmetic number, because the mean of its divisors is an integer number (856525846).

Almost surely, 2^20321313200 is an apocalyptic number.

20321313200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20321313200 is an abundant number, since it is smaller than the sum of its proper divisors (31070237560).

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

20321313200 is a wasteful number, since it uses less digits than its factorization.

20321313200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2673894 (or 2673883 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20321313200 its reverse (231312302), we get a palindrome (20552625502).

The spelling of 20321313200 in words is "twenty billion, three hundred twenty-one million, three hundred thirteen thousand, two hundred".