243345441319 has 2 divisors, whose sum is σ = 243345441320. Its totient is φ = 243345441318.

The previous prime is 243345441301. The next prime is 243345441323. The reversal of 243345441319 is 913144543342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243345441319 - 2¹³ = 243345433127 is a prime.

It is a super-2 number, since 2×243345441319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243345441389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121672720659 + 121672720660.

It is an arithmetic number, because the mean of its divisors is an integer number (121672720660).

Almost surely, 2^243345441319 is an apocalyptic number.

243345441319 is a deficient number, since it is larger than the sum of its proper divisors (1).

243345441319 is an equidigital number, since it uses as much as digits as its factorization.

243345441319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 43.

The spelling of 243345441319 in words is "two hundred forty-three billion, three hundred forty-five million, four hundred forty-one thousand, three hundred nineteen".