243310143013 has 4 divisors (see below), whose sum is σ = 278068734880. Its totient is φ = 208551551148.

The previous prime is 243310142983. The next prime is 243310143031. The reversal of 243310143013 is 310341013342.

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.

It is a cyclic number.

It is not a de Polignac number, because 243310143013 - 2²⁹ = 242773272101 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 (243310143113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17379295923 + ... + 17379295936.

It is an arithmetic number, because the mean of its divisors is an integer number (69517183720).

Almost surely, 2^243310143013 is an apocalyptic number.

It is an amenable number.

243310143013 is a deficient number, since it is larger than the sum of its proper divisors (34758591867).

243310143013 is an equidigital number, since it uses as much as digits as its factorization.

243310143013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34758591866.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 243310143013 its reverse (310341013342), we get a palindrome (553651156355).

The spelling of 243310143013 in words is "two hundred forty-three billion, three hundred ten million, one hundred forty-three thousand, thirteen".