33131122132 has 12 divisors (see below), whose sum is σ = 57994399540. Its totient is φ = 16561293696.

The previous prime is 33131122097. The next prime is 33131122139. The reversal of 33131122132 is 23122113133.

It can be written as a sum of positive squares in 2 ways, for example, as 26525333956 + 6605788176 = 162866^2 + 81276^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33131122139) 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, 1049343 + ... + 1080454.

Almost surely, 2^33131122132 is an apocalyptic number.

It is an amenable number.

33131122132 is a deficient number, since it is larger than the sum of its proper divisors (24863277408).

33131122132 is a wasteful number, since it uses less digits than its factorization.

33131122132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133690 (or 2133688 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 33131122132 its reverse (23122113133), we get a palindrome (56253235265).

The spelling of 33131122132 in words is "thirty-three billion, one hundred thirty-one million, one hundred twenty-two thousand, one hundred thirty-two".