33343404021 has 24 divisors (see below), whose sum is σ = 48722394240. Its totient is φ = 21970804416.

The previous prime is 33343403959. The next prime is 33343404067. The reversal of 33343404021 is 12040434333.

It is not a de Polignac number, because 33343404021 - 2¹³ = 33343395829 is a prime.

It is a super-2 number, since 2×33343404021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33343404091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2655460 + ... + 2667986.

It is an arithmetic number, because the mean of its divisors is an integer number (2030099760).

Almost surely, 2^33343404021 is an apocalyptic number.

It is an amenable number.

33343404021 is a deficient number, since it is larger than the sum of its proper divisors (15378990219).

33343404021 is a wasteful number, since it uses less digits than its factorization.

33343404021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15945 (or 15942 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 33343404021 its reverse (12040434333), we get a palindrome (45383838354).

It can be divided in two parts, 3334 and 3404021, that added together give a triangular number (3407355 = T₂₆₁₀).

The spelling of 33343404021 in words is "thirty-three billion, three hundred forty-three million, four hundred four thousand, twenty-one".