243422143399 has 2 divisors, whose sum is σ = 243422143400. Its totient is φ = 243422143398.

The previous prime is 243422143351. The next prime is 243422143451. The reversal of 243422143399 is 993341224342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243422143399 - 2²³ = 243413754791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243422843399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121711071699 + 121711071700.

It is an arithmetic number, because the mean of its divisors is an integer number (121711071700).

Almost surely, 2^243422143399 is an apocalyptic number.

243422143399 is a deficient number, since it is larger than the sum of its proper divisors (1).

243422143399 is an equidigital number, since it uses as much as digits as its factorization.

243422143399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1119744, while the sum is 46.

The spelling of 243422143399 in words is "two hundred forty-three billion, four hundred twenty-two million, one hundred forty-three thousand, three hundred ninety-nine".