20322003311 has 4 divisors (see below), whose sum is σ = 20600386992. Its totient is φ = 20043619632.

The previous prime is 20322003307. The next prime is 20322003353. The reversal of 20322003311 is 11330022302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11330022302 = 2 ⋅5665011151.

It is a cyclic number.

It is not a de Polignac number, because 20322003311 - 2² = 20322003307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20322003311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322003301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139191731 + ... + 139191876.

It is an arithmetic number, because the mean of its divisors is an integer number (5150096748).

Almost surely, 2^20322003311 is an apocalyptic number.

20322003311 is a deficient number, since it is larger than the sum of its proper divisors (278383681).

20322003311 is an equidigital number, since it uses as much as digits as its factorization.

20322003311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278383680.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20322003311 its reverse (11330022302), we get a palindrome (31652025613).

The spelling of 20322003311 in words is "twenty billion, three hundred twenty-two million, three thousand, three hundred eleven".