33031413012 has 72 divisors (see below), whose sum is σ = 86150426880. Its totient is φ = 9835637760.

The previous prime is 33031412951. The next prime is 33031413029. The reversal of 33031413012 is 21031413033.

It is a self number, because there is not a number n which added to its sum of digits gives 33031413012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199837 + ... + 325572.

Almost surely, 2^33031413012 is an apocalyptic number.

It is an amenable number.

33031413012 is an abundant number, since it is smaller than the sum of its proper divisors (53119013868).

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

33031413012 is a wasteful number, since it uses less digits than its factorization.

33031413012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525473 (or 525458 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 33031413012 its sum of digits (21), we get a palindrome (33031413033).

Adding to 33031413012 its reverse (21031413033), we get a palindrome (54062826045).

The spelling of 33031413012 in words is "thirty-three billion, thirty-one million, four hundred thirteen thousand, twelve".