20321332302120 has 64 divisors (see below), whose sum is σ = 64550114377920. Its totient is φ = 5100255949824.

The previous prime is 20321332302119. The next prime is 20321332302143. The reversal of 20321332302120 is 2120323312302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4980716662 + ... + 4980720741.

It is an arithmetic number, because the mean of its divisors is an integer number (1008595537155).

Almost surely, 2^{20321332302120} is an apocalyptic number.

20321332302120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20321332302120 is an abundant number, since it is smaller than the sum of its proper divisors (44228782075800).

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

20321332302120 is a wasteful number, since it uses less digits than its factorization.

20321332302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9961437434 (or 9961437430 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20321332302120 its reverse (2120323312302), we get a palindrome (22441655614422).

The spelling of 20321332302120 in words is "twenty trillion, three hundred twenty-one billion, three hundred thirty-two million, three hundred two thousand, one hundred twenty".