33020231320 has 32 divisors (see below), whose sum is σ = 74559942720. Its totient is φ = 13161084160.

The previous prime is 33020231273. The next prime is 33020231339. The reversal of 33020231320 is 2313202033.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1457632 + ... + 1480111.

It is an arithmetic number, because the mean of its divisors is an integer number (2329998210).

Almost surely, 2^33020231320 is an apocalyptic number.

It is an amenable number.

33020231320 is an abundant number, since it is smaller than the sum of its proper divisors (41539711400).

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

33020231320 is a wasteful number, since it uses less digits than its factorization.

33020231320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938035 (or 2938031 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 33020231320 its reverse (2313202033), we get a palindrome (35333433353).

The spelling of 33020231320 in words is "thirty-three billion, twenty million, two hundred thirty-one thousand, three hundred twenty".