33131333120 has 40 divisors (see below), whose sum is σ = 79437554064. Its totient is φ = 13252532224.

The previous prime is 33131333119. The next prime is 33131333143. The reversal of 33131333120 is 2133313133.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6468404 + ... + 6473523.

Almost surely, 2^33131333120 is an apocalyptic number.

It is an amenable number.

33131333120 is an abundant number, since it is smaller than the sum of its proper divisors (46306220944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33131333120 is an equidigital number, since it uses as much as digits as its factorization.

33131333120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12941950 (or 12941934 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 33131333120 its reverse (2133313133), we get a palindrome (35264646253).

The spelling of 33131333120 in words is "thirty-three billion, one hundred thirty-one million, three hundred thirty-three thousand, one hundred twenty".