33343402321 has 4 divisors (see below), whose sum is σ = 33362167972. Its totient is φ = 33324636672.

The previous prime is 33343402303. The next prime is 33343402327. The reversal of 33343402321 is 12320434333.

It is a happy number.

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 21774248721 + 11569153600 = 147561^2 + 107560^2 .

It is a cyclic number.

It is not a de Polignac number, because 33343402321 - 2¹¹ = 33343400273 is a prime.

It is a super-2 number, since 2×33343402321² (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 33343402321.

It is not an unprimeable number, because it can be changed into a prime (33343402327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9380160 + ... + 9383713.

It is an arithmetic number, because the mean of its divisors is an integer number (8340541993).

Almost surely, 2^33343402321 is an apocalyptic number.

It is an amenable number.

33343402321 is a deficient number, since it is larger than the sum of its proper divisors (18765651).

33343402321 is a wasteful number, since it uses less digits than its factorization.

33343402321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18765650.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 33343402321 its reverse (12320434333), we get a palindrome (45663836654).

The spelling of 33343402321 in words is "thirty-three billion, three hundred forty-three million, four hundred two thousand, three hundred twenty-one".