33243444013 has 16 divisors (see below), whose sum is σ = 37580933376. Its totient is φ = 29176266240.

The previous prime is 33243443971. The next prime is 33243444023. The reversal of 33243444013 is 31044434233.

It is a cyclic number.

It is not a de Polignac number, because 33243444013 - 2¹³ = 33243435821 is a prime.

It is a super-2 number, since 2×33243444013² (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 (33243444023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282948 + ... + 382813.

It is an arithmetic number, because the mean of its divisors is an integer number (2348808336).

Almost surely, 2^33243444013 is an apocalyptic number.

It is an amenable number.

33243444013 is a deficient number, since it is larger than the sum of its proper divisors (4337489363).

33243444013 is a wasteful number, since it uses less digits than its factorization.

33243444013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665964.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 33243444013 its reverse (31044434233), we get a palindrome (64287878246).

The spelling of 33243444013 in words is "thirty-three billion, two hundred forty-three million, four hundred forty-four thousand, thirteen".