2305145204243 has 4 divisors (see below), whose sum is σ = 2634451662000. Its totient is φ = 1975838746488.

The previous prime is 2305145204237. The next prime is 2305145204249. The reversal of 2305145204243 is 3424025415032.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2305145204237) and next prime (2305145204249).

It is a cyclic number.

It is not a de Polignac number, because 2305145204243 - 2⁶ = 2305145204179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2305145204249) 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, 164653228868 + ... + 164653228881.

It is an arithmetic number, because the mean of its divisors is an integer number (658612915500).

Almost surely, 2^{2305145204243} is an apocalyptic number.

2305145204243 is a deficient number, since it is larger than the sum of its proper divisors (329306457757).

2305145204243 is an equidigital number, since it uses as much as digits as its factorization.

2305145204243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329306457756.

The product of its (nonzero) digits is 115200, while the sum is 35.

The spelling of 2305145204243 in words is "two trillion, three hundred five billion, one hundred forty-five million, two hundred four thousand, two hundred forty-three".