20322131133 has 4 divisors (see below), whose sum is σ = 27096174848. Its totient is φ = 13548087420.

The previous prime is 20322131117. The next prime is 20322131171. The reversal of 20322131133 is 33113122302.

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 not a de Polignac number, because 20322131133 - 2⁴ = 20322131117 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 (20322130133) 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, 3387021853 + ... + 3387021858.

It is an arithmetic number, because the mean of its divisors is an integer number (6774043712).

Almost surely, 2^20322131133 is an apocalyptic number.

It is an amenable number.

20322131133 is a deficient number, since it is larger than the sum of its proper divisors (6774043715).

20322131133 is an equidigital number, since it uses as much as digits as its factorization.

20322131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774043714.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20322131133 its reverse (33113122302), we get a palindrome (53435253435).

The spelling of 20322131133 in words is "twenty billion, three hundred twenty-two million, one hundred thirty-one thousand, one hundred thirty-three".