33131201013 has 12 divisors (see below), whose sum is σ = 49628630688. Its totient is φ = 22087467180.

The previous prime is 33131201011. The next prime is 33131201017. The reversal of 33131201013 is 31010213133.

It is a happy number.

33131201013 is a `hidden beast` number, since 331 + 312 + 0 + 10 + 13 = 666.

It is not a de Polignac number, because 33131201013 - 2¹ = 33131201011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33131201011) 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 11 ways as a sum of consecutive naturals, for example, 68170953 + ... + 68171438.

It is an arithmetic number, because the mean of its divisors is an integer number (4135719224).

Almost surely, 2^33131201013 is an apocalyptic number.

It is an amenable number.

33131201013 is a deficient number, since it is larger than the sum of its proper divisors (16497429675).

33131201013 is an equidigital number, since it uses as much as digits as its factorization.

33131201013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136342406 (or 136342394 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 33131201013 its reverse (31010213133), we get a palindrome (64141414146).

It can be divided in two parts, 3313120 and 1013, that added together give a palindrome (3314133).

The spelling of 33131201013 in words is "thirty-three billion, one hundred thirty-one million, two hundred one thousand, thirteen".