20200312321 has 16 divisors (see below), whose sum is σ = 23480247168. Its totient is φ = 17019302400.

The previous prime is 20200312291. The next prime is 20200312343. The reversal of 20200312321 is 12321300202.

It is a cyclic number.

It is not a de Polignac number, because 20200312321 - 2⁹ = 20200311809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20200312295 and 20200312304.

It is not an unprimeable number, because it can be changed into a prime (20200312361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 655761 + ... + 685873.

It is an arithmetic number, because the mean of its divisors is an integer number (1467515448).

Almost surely, 2^20200312321 is an apocalyptic number.

It is an amenable number.

20200312321 is a deficient number, since it is larger than the sum of its proper divisors (3279934847).

20200312321 is a wasteful number, since it uses less digits than its factorization.

20200312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31752.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20200312321 its reverse (12321300202), we get a palindrome (32521612523).

The spelling of 20200312321 in words is "twenty billion, two hundred million, three hundred twelve thousand, three hundred twenty-one".