20322321013 has 4 divisors (see below), whose sum is σ = 20324443360. Its totient is φ = 20320198668.

The previous prime is 20322321011. The next prime is 20322321043. The reversal of 20322321013 is 31012322302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20322321013 - 2¹ = 20322321011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322321011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1046745 + ... + 1065982.

It is an arithmetic number, because the mean of its divisors is an integer number (5081110840).

Almost surely, 2^20322321013 is an apocalyptic number.

It is an amenable number.

20322321013 is a deficient number, since it is larger than the sum of its proper divisors (2122347).

20322321013 is an equidigital number, since it uses as much as digits as its factorization.

20322321013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2122346.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20322321013 its reverse (31012322302), we get a palindrome (51334643315).

The spelling of 20322321013 in words is "twenty billion, three hundred twenty-two million, three hundred twenty-one thousand, thirteen".