999033213313 has 4 divisors (see below), whose sum is σ = 999742251780. Its totient is φ = 998324174848.

The previous prime is 999033213289. The next prime is 999033213317. The reversal of 999033213313 is 313312330999.

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 166902480369 + 832130732944 = 408537^2 + 912212^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-999033213313 is a prime.

It is a super-2 number, since 2×999033213313² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (999033213317) 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, 354517120 + ... + 354519937.

It is an arithmetic number, because the mean of its divisors is an integer number (249935562945).

Almost surely, 2^999033213313 is an apocalyptic number.

It is an amenable number.

999033213313 is a deficient number, since it is larger than the sum of its proper divisors (709038467).

999033213313 is a wasteful number, since it uses less digits than its factorization.

999033213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 709038466.

The product of its (nonzero) digits is 354294, while the sum is 46.

The spelling of 999033213313 in words is "nine hundred ninety-nine billion, thirty-three million, two hundred thirteen thousand, three hundred thirteen".