33113331012 has 48 divisors (see below), whose sum is σ = 81945505152. Its totient is φ = 10384788480.

The previous prime is 33113330941. The next prime is 33113331023. The reversal of 33113331012 is 21013331133.

It is a self number, because there is not a number n which added to its sum of digits gives 33113331012.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 966573 + ... + 1000244.

It is an arithmetic number, because the mean of its divisors is an integer number (1707198024).

Almost surely, 2^33113331012 is an apocalyptic number.

It is an amenable number.

33113331012 is an abundant number, since it is smaller than the sum of its proper divisors (48832174140).

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

33113331012 is a wasteful number, since it uses less digits than its factorization.

33113331012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1966908 (or 1966906 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 33113331012 its reverse (21013331133), we get a palindrome (54126662145).

The spelling of 33113331012 in words is "thirty-three billion, one hundred thirteen million, three hundred thirty-one thousand, twelve".