33120020232 has 64 divisors (see below), whose sum is σ = 99076992000. Its totient is φ = 10190774592.

The previous prime is 33120020231. The next prime is 33120020239. The reversal of 33120020232 is 23202002133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (33120020231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5894632 + ... + 5900247.

It is an arithmetic number, because the mean of its divisors is an integer number (1548078000).

Almost surely, 2^33120020232 is an apocalyptic number.

It is an amenable number.

33120020232 is an abundant number, since it is smaller than the sum of its proper divisors (65956971768).

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

33120020232 is a wasteful number, since it uses less digits than its factorization.

33120020232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11794907 (or 11794897 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 33120020232 its reverse (23202002133), we get a palindrome (56322022365).

The spelling of 33120020232 in words is "thirty-three billion, one hundred twenty million, twenty thousand, two hundred thirty-two".