33042424321 has 4 divisors (see below), whose sum is σ = 33044624644. Its totient is φ = 33040224000.

The previous prime is 33042424229. The next prime is 33042424343. The reversal of 33042424321 is 12342424033.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10702937025 + 22339487296 = 103455^2 + 149464^2 .

It is a cyclic number.

It is not a de Polignac number, because 33042424321 - 2³¹ = 30894940673 is a prime.

It is a super-2 number, since 2×33042424321² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33042424321.

It is not an unprimeable number, because it can be changed into a prime (33042424351) 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 3 ways as a sum of consecutive naturals, for example, 1077480 + ... + 1107721.

It is an arithmetic number, because the mean of its divisors is an integer number (8261156161).

Almost surely, 2^33042424321 is an apocalyptic number.

It is an amenable number.

33042424321 is a deficient number, since it is larger than the sum of its proper divisors (2200323).

33042424321 is a wasteful number, since it uses less digits than its factorization.

33042424321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200322.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 33042424321 its reverse (12342424033), we get a palindrome (45384848354).

The spelling of 33042424321 in words is "thirty-three billion, forty-two million, four hundred twenty-four thousand, three hundred twenty-one".