20013301133 has 6 divisors (see below), whose sum is σ = 23280778926. Its totient is φ = 17154258072.

The previous prime is 20013301081. The next prime is 20013301159. The reversal of 20013301133 is 33110331002.

It can be written as a sum of positive squares in only one way, i.e., 15197218729 + 4816082404 = 123277^2 + 69398^2 .

It is not a de Polignac number, because 20013301133 - 2⁶ = 20013301069 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 (20013303133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 204217310 + ... + 204217407.

It is an arithmetic number, because the mean of its divisors is an integer number (3880129821).

Almost surely, 2^20013301133 is an apocalyptic number.

It is an amenable number.

20013301133 is a deficient number, since it is larger than the sum of its proper divisors (3267477793).

20013301133 is an equidigital number, since it uses as much as digits as its factorization.

20013301133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408434731 (or 408434724 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 20013301133 its reverse (33110331002), we get a palindrome (53123632135).

The spelling of 20013301133 in words is "twenty billion, thirteen million, three hundred one thousand, one hundred thirty-three".