33012313012 has 24 divisors (see below), whose sum is σ = 67809077504. Its totient is φ = 13765751712.

The previous prime is 33012313003. The next prime is 33012313079. The reversal of 33012313012 is 21031321033.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15931548 + ... + 15933619.

Almost surely, 2^33012313012 is an apocalyptic number.

It is an amenable number.

33012313012 is an abundant number, since it is smaller than the sum of its proper divisors (34796764492).

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

33012313012 is a wasteful number, since it uses less digits than its factorization.

33012313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31865215 (or 31865213 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 33012313012 its reverse (21031321033), we get a palindrome (54043634045).

The spelling of 33012313012 in words is "thirty-three billion, twelve million, three hundred thirteen thousand, twelve".