243312445163 has 2 divisors, whose sum is σ = 243312445164. Its totient is φ = 243312445162.

The previous prime is 243312445111. The next prime is 243312445183. The reversal of 243312445163 is 361544213342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243312445163 - 2²² = 243308250859 is a prime.

It is not a weakly prime, because it can be changed into another prime (243312445183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121656222581 + 121656222582.

It is an arithmetic number, because the mean of its divisors is an integer number (121656222582).

Almost surely, 2^243312445163 is an apocalyptic number.

243312445163 is a deficient number, since it is larger than the sum of its proper divisors (1).

243312445163 is an equidigital number, since it uses as much as digits as its factorization.

243312445163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 207360, while the sum is 38.

The spelling of 243312445163 in words is "two hundred forty-three billion, three hundred twelve million, four hundred forty-five thousand, one hundred sixty-three".