20343241422947 has 2 divisors, whose sum is σ = 20343241422948. Its totient is φ = 20343241422946.

The previous prime is 20343241422919. The next prime is 20343241423027. The reversal of 20343241422947 is 74922414234302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20343241422947 - 2³⁰ = 20342167681123 is a prime.

It is not a weakly prime, because it can be changed into another prime (20343241422547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171620711473 + 10171620711474.

It is an arithmetic number, because the mean of its divisors is an integer number (10171620711474).

Almost surely, 2^{20343241422947} is an apocalyptic number.

20343241422947 is a deficient number, since it is larger than the sum of its proper divisors (1).

20343241422947 is an equidigital number, since it uses as much as digits as its factorization.

20343241422947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2322432, while the sum is 47.

The spelling of 20343241422947 in words is "twenty trillion, three hundred forty-three billion, two hundred forty-one million, four hundred twenty-two thousand, nine hundred forty-seven".