20031133033 has 4 divisors (see below), whose sum is σ = 20035743300. Its totient is φ = 20026522768.

The previous prime is 20031133019. The next prime is 20031133043. The reversal of 20031133033 is 33033113002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6133552489 + 13897580544 = 78317^2 + 117888^2 .

It is a cyclic number.

It is not a de Polignac number, because 20031133033 - 2²⁹ = 19494262121 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 20031133033.

It is not an unprimeable number, because it can be changed into a prime (20031133013) 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, 2298610 + ... + 2307307.

It is an arithmetic number, because the mean of its divisors is an integer number (5008935825).

Almost surely, 2^20031133033 is an apocalyptic number.

It is an amenable number.

20031133033 is a deficient number, since it is larger than the sum of its proper divisors (4610267).

20031133033 is an equidigital number, since it uses as much as digits as its factorization.

20031133033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4610266.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 20031133033 its reverse (33033113002), we get a palindrome (53064246035).

The spelling of 20031133033 in words is "twenty billion, thirty-one million, one hundred thirty-three thousand, thirty-three".