200443312013 has 12 divisors (see below), whose sum is σ = 233218285020. Its totient is φ = 171772054272.

The previous prime is 200443311983. The next prime is 200443312033. The reversal of 200443312013 is 310213344002.

It can be written as a sum of positive squares in 2 ways, for example, as 93057332809 + 107385979204 = 305053^2 + 327698^2 .

It is not a de Polignac number, because 200443312013 - 2²² = 200439117709 is a prime.

It is a super-2 number, since 2×200443312013² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 200443312013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200443312033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200228 + ... + 664061.

It is an arithmetic number, because the mean of its divisors is an integer number (19434857085).

Almost surely, 2^200443312013 is an apocalyptic number.

It is an amenable number.

200443312013 is a deficient number, since it is larger than the sum of its proper divisors (32774973007).

200443312013 is an equidigital number, since it uses as much as digits as its factorization.

200443312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869036 (or 869029 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 200443312013 its reverse (310213344002), we get a palindrome (510656656015).

The spelling of 200443312013 in words is "two hundred billion, four hundred forty-three million, three hundred twelve thousand, thirteen".