243145203032193 has 64 divisors (see below), whose sum is σ = 412461716275200. Its totient is φ = 126301992163200.

The previous prime is 243145203032177. The next prime is 243145203032209. The reversal of 243145203032193 is 391230302541342.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (243145203032177) and next prime (243145203032209).

It is not a de Polignac number, because 243145203032193 - 2⁴ = 243145203032177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243145223032193) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 200772621 + ... + 201980037.

It is an arithmetic number, because the mean of its divisors is an integer number (6444714316800).

Almost surely, 2^{243145203032193} is an apocalyptic number.

It is an amenable number.

243145203032193 is a deficient number, since it is larger than the sum of its proper divisors (169316513243007).

243145203032193 is a wasteful number, since it uses less digits than its factorization.

243145203032193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225243 (or 1225229 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 243145203032193 in words is "two hundred forty-three trillion, one hundred forty-five billion, two hundred three million, thirty-two thousand, one hundred ninety-three".