305968045243 has 4 divisors (see below), whose sum is σ = 349677766000. Its totient is φ = 262258324488.

The previous prime is 305968045241. The next prime is 305968045259. The reversal of 305968045243 is 342540869503.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 305968045243 - 2¹ = 305968045241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305968045241) 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, 21854860368 + ... + 21854860381.

It is an arithmetic number, because the mean of its divisors is an integer number (87419441500).

Almost surely, 2^305968045243 is an apocalyptic number.

305968045243 is a deficient number, since it is larger than the sum of its proper divisors (43709720757).

305968045243 is an equidigital number, since it uses as much as digits as its factorization.

305968045243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43709720756.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 305968045243 in words is "three hundred five billion, nine hundred sixty-eight million, forty-five thousand, two hundred forty-three".