33121423244 has 96 divisors (see below), whose sum is σ = 72049380480. Its totient is φ = 12973105152.

The previous prime is 33121423213. The next prime is 33121423253. The reversal of 33121423244 is 44232412133.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16420124 + ... + 16422140.

It is an arithmetic number, because the mean of its divisors is an integer number (750514380).

Almost surely, 2^33121423244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33121423244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36024690240).

33121423244 is an abundant number, since it is smaller than the sum of its proper divisors (38927957236).

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

33121423244 is a wasteful number, since it uses less digits than its factorization.

33121423244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2467 (or 2465 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

Adding to 33121423244 its reverse (44232412133), we get a palindrome (77353835377).

The spelling of 33121423244 in words is "thirty-three billion, one hundred twenty-one million, four hundred twenty-three thousand, two hundred forty-four".