243052003013 has 4 divisors (see below), whose sum is σ = 243053936268. Its totient is φ = 243050069760.

The previous prime is 243052002913. The next prime is 243052003021. The reversal of 243052003013 is 310300250342.

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 185711869249 + 57340133764 = 430943^2 + 239458^2 .

It is a cyclic number.

It is not a de Polignac number, because 243052003013 - 2⁸ = 243052002757 is a prime.

It is a super-2 number, since 2×243052003013² (a number of 24 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 243052003013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243052003093) 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, 763868 + ... + 1034213.

It is an arithmetic number, because the mean of its divisors is an integer number (60763484067).

Almost surely, 2^243052003013 is an apocalyptic number.

It is an amenable number.

243052003013 is a deficient number, since it is larger than the sum of its proper divisors (1933255).

243052003013 is a wasteful number, since it uses less digits than its factorization.

243052003013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933254.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 243052003013 its reverse (310300250342), we get a palindrome (553352253355).

The spelling of 243052003013 in words is "two hundred forty-three billion, fifty-two million, three thousand, thirteen".