20312231200321 has 8 divisors (see below), whose sum is σ = 20362181484800. Its totient is φ = 20262282317280.

The previous prime is 20312231200307. The next prime is 20312231200363. The reversal of 20312231200321 is 12300213221302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20312231200321 - 2³¹ = 20310083716673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20312231200292 and 20312231200301.

It is not an unprimeable number, because it can be changed into a prime (20312231207321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32438920 + ... + 33059158.

It is an arithmetic number, because the mean of its divisors is an integer number (2545272685600).

Almost surely, 2^{20312231200321} is an apocalyptic number.

It is an amenable number.

20312231200321 is a deficient number, since it is larger than the sum of its proper divisors (49950284479).

20312231200321 is an equidigital number, since it uses as much as digits as its factorization.

20312231200321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700719.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20312231200321 its reverse (12300213221302), we get a palindrome (32612444421623).

The spelling of 20312231200321 in words is "twenty trillion, three hundred twelve billion, two hundred thirty-one million, two hundred thousand, three hundred twenty-one".