20321312232300 has 72 divisors (see below), whose sum is σ = 58826499186000. Its totient is φ = 5416236030720.

The previous prime is 20321312232259. The next prime is 20321312232301. The reversal of 20321312232300 is 323221312302.

It is not an unprimeable number, because it can be changed into a prime (20321312232301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16792855 + ... + 17962254.

Almost surely, 2^{20321312232300} is an apocalyptic number.

20321312232300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20321312232300 is an abundant number, since it is smaller than the sum of its proper divisors (38505186953700).

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

20321312232300 is a wasteful number, since it uses less digits than its factorization.

20321312232300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34757075 (or 34757068 counting only the distinct ones).

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

Adding to 20321312232300 its reverse (323221312302), we get a palindrome (20644533544602).

The spelling of 20321312232300 in words is "twenty trillion, three hundred twenty-one billion, three hundred twelve million, two hundred thirty-two thousand, three hundred".