243053302013 has 4 divisors (see below), whose sum is σ = 243056075808. Its totient is φ = 243050528220.

The previous prime is 243053301979. The next prime is 243053302057. The reversal of 243053302013 is 310203350342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310203350342 = 2 ⋅155101675171.

It is a cyclic number.

It is not a de Polignac number, because 243053302013 - 2⁶ = 243053301949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243053302213) 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, 1251023 + ... + 1432188.

It is an arithmetic number, because the mean of its divisors is an integer number (60764018952).

Almost surely, 2^243053302013 is an apocalyptic number.

It is an amenable number.

243053302013 is a deficient number, since it is larger than the sum of its proper divisors (2773795).

243053302013 is an equidigital number, since it uses as much as digits as its factorization.

243053302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2773794.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 243053302013 its reverse (310203350342), we get a palindrome (553256652355).

The spelling of 243053302013 in words is "two hundred forty-three billion, fifty-three million, three hundred two thousand, thirteen".