20322031133 has 4 divisors (see below), whose sum is σ = 21205597728. Its totient is φ = 19438464540.

The previous prime is 20322031109. The next prime is 20322031189. The reversal of 20322031133 is 33113022302.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33113022302 = 2 ⋅16556511151.

It is a cyclic number.

It is not a de Polignac number, because 20322031133 - 2¹⁴ = 20322014749 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 (20322031193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441783263 + ... + 441783308.

It is an arithmetic number, because the mean of its divisors is an integer number (5301399432).

Almost surely, 2^20322031133 is an apocalyptic number.

20322031133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20322031133 is a deficient number, since it is larger than the sum of its proper divisors (883566595).

20322031133 is an equidigital number, since it uses as much as digits as its factorization.

20322031133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883566594.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20322031133 its reverse (33113022302), we get a palindrome (53435053435).

The spelling of 20322031133 in words is "twenty billion, three hundred twenty-two million, thirty-one thousand, one hundred thirty-three".