20302321200 has 120 divisors (see below), whose sum is σ = 74325861888. Its totient is φ = 4640528640.

The previous prime is 20302321183. The next prime is 20302321211. The reversal of 20302321200 is 212320302.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×20302321200² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20302321200.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1200072 + ... + 1216871.

Almost surely, 2^20302321200 is an apocalyptic number.

20302321200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20302321200 is an abundant number, since it is smaller than the sum of its proper divisors (54023540688).

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

20302321200 is a wasteful number, since it uses less digits than its factorization.

20302321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416971 (or 2416960 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20302321200 its reverse (212320302), we get a palindrome (20514641502).

The spelling of 20302321200 in words is "twenty billion, three hundred two million, three hundred twenty-one thousand, two hundred".