33243421343 has 4 divisors (see below), whose sum is σ = 36265550568. Its totient is φ = 30221292120.

The previous prime is 33243421331. The next prime is 33243421357. The reversal of 33243421343 is 34312434233.

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

It is a cyclic number.

It is not a de Polignac number, because 33243421343 - 2¹² = 33243417247 is a prime.

It is a super-2 number, since 2×33243421343² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33243429343) 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, 1511064596 + ... + 1511064617.

It is an arithmetic number, because the mean of its divisors is an integer number (9066387642).

Almost surely, 2^33243421343 is an apocalyptic number.

33243421343 is a deficient number, since it is larger than the sum of its proper divisors (3022129225).

33243421343 is a wasteful number, since it uses less digits than its factorization.

33243421343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022129224.

The product of its digits is 62208, while the sum is 32.

Adding to 33243421343 its reverse (34312434233), we get a palindrome (67555855576).

The spelling of 33243421343 in words is "thirty-three billion, two hundred forty-three million, four hundred twenty-one thousand, three hundred forty-three".