33023031220 has 48 divisors (see below), whose sum is σ = 70056560448. Its totient is φ = 13074531840.

The previous prime is 33023031193. The next prime is 33023031247. The reversal of 33023031220 is 2213032033.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (33023031193) and next prime (33023031247).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2756764 + ... + 2768716.

It is an arithmetic number, because the mean of its divisors is an integer number (1459511676).

Almost surely, 2^33023031220 is an apocalyptic number.

It is an amenable number.

33023031220 is an abundant number, since it is smaller than the sum of its proper divisors (37033529228).

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

33023031220 is a wasteful number, since it uses less digits than its factorization.

33023031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13360 (or 13358 counting only the distinct ones).

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

Adding to 33023031220 its reverse (2213032033), we get a palindrome (35236063253).

The spelling of 33023031220 in words is "thirty-three billion, twenty-three million, thirty-one thousand, two hundred twenty".