1305423132239 has 2 divisors, whose sum is σ = 1305423132240. Its totient is φ = 1305423132238.

The previous prime is 1305423132157. The next prime is 1305423132341. The reversal of 1305423132239 is 9322313245031.

It is a weak prime.

It is an emirp because it is prime and its reverse (9322313245031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1305423132239 - 2¹² = 1305423128143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305443132239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652711566119 + 652711566120.

It is an arithmetic number, because the mean of its divisors is an integer number (652711566120).

Almost surely, 2^{1305423132239} is an apocalyptic number.

1305423132239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305423132239 is an equidigital number, since it uses as much as digits as its factorization.

1305423132239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 1305423132239 in words is "one trillion, three hundred five billion, four hundred twenty-three million, one hundred thirty-two thousand, two hundred thirty-nine".