33133312020 has 96 divisors (see below), whose sum is σ = 95033917440. Its totient is φ = 8620698240.

The previous prime is 33133312019. The next prime is 33133312031. The reversal of 33133312020 is 2021333133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2550301 + ... + 2563259.

It is an arithmetic number, because the mean of its divisors is an integer number (989936640).

Almost surely, 2^33133312020 is an apocalyptic number.

33133312020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33133312020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47516958720).

33133312020 is an abundant number, since it is smaller than the sum of its proper divisors (61900605420).

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

33133312020 is a wasteful number, since it uses less digits than its factorization.

33133312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14005 (or 14003 counting only the distinct ones).

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

Adding to 33133312020 its reverse (2021333133), we get a palindrome (35154645153).

The spelling of 33133312020 in words is "thirty-three billion, one hundred thirty-three million, three hundred twelve thousand, twenty".