33020421330 has 128 divisors (see below), whose sum is σ = 88412808960. Its totient is φ = 7840419840.

The previous prime is 33020421319. The next prime is 33020421331. The reversal of 33020421330 is 3312402033.

It is a super-3 number, since 3×33020421330³ (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33020421297 and 33020421306.

It is not an unprimeable number, because it can be changed into a prime (33020421331) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 1411509 + ... + 1434711.

It is an arithmetic number, because the mean of its divisors is an integer number (690725070).

Almost surely, 2^33020421330 is an apocalyptic number.

33020421330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 33020421330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44206404480).

33020421330 is an abundant number, since it is smaller than the sum of its proper divisors (55392387630).

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

33020421330 is a wasteful number, since it uses less digits than its factorization.

33020421330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23356.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 33020421330 its reverse (3312402033), we get a palindrome (36332823363).

The spelling of 33020421330 in words is "thirty-three billion, twenty million, four hundred twenty-one thousand, three hundred thirty".