33133020312 has 48 divisors (see below), whose sum is σ = 96356235960. Its totient is φ = 9466576896.

The previous prime is 33133020311. The next prime is 33133020391. The reversal of 33133020312 is 21302033133.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33133020311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14085993 + ... + 14088344.

Almost surely, 2^33133020312 is an apocalyptic number.

It is an amenable number.

33133020312 is an abundant number, since it is smaller than the sum of its proper divisors (63223215648).

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

33133020312 is a wasteful number, since it uses less digits than its factorization.

33133020312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28174360 (or 28174349 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 33133020312 its reverse (21302033133), we get a palindrome (54435053445).

The spelling of 33133020312 in words is "thirty-three billion, one hundred thirty-three million, twenty thousand, three hundred twelve".