33131201233 has 8 divisors (see below), whose sum is σ = 35699724200. Its totient is φ = 30565531008.

The previous prime is 33131201219. The next prime is 33131201249. The reversal of 33131201233 is 33210213133.

It can be written as a sum of positive squares in 4 ways, for example, as 15982774929 + 17148426304 = 126423^2 + 130952^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33131201233 - 2²⁵ = 33097646801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33131201333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 689028 + ... + 735541.

It is an arithmetic number, because the mean of its divisors is an integer number (4462465525).

Almost surely, 2^33131201233 is an apocalyptic number.

It is an amenable number.

33131201233 is a deficient number, since it is larger than the sum of its proper divisors (2568522967).

33131201233 is a wasteful number, since it uses less digits than its factorization.

33131201233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1426371.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33131201233 its reverse (33210213133), we get a palindrome (66341414366).

The spelling of 33131201233 in words is "thirty-three billion, one hundred thirty-one million, two hundred one thousand, two hundred thirty-three".