11409205398443 has 2 divisors, whose sum is σ = 11409205398444. Its totient is φ = 11409205398442.

The previous prime is 11409205398431. The next prime is 11409205398449. The reversal of 11409205398443 is 34489350290411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11409205398443 is a prime.

It is not a weakly prime, because it can be changed into another prime (11409205398449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5704602699221 + 5704602699222.

It is an arithmetic number, because the mean of its divisors is an integer number (5704602699222).

Almost surely, 2^{11409205398443} is an apocalyptic number.

11409205398443 is a deficient number, since it is larger than the sum of its proper divisors (1).

11409205398443 is an equidigital number, since it uses as much as digits as its factorization.

11409205398443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 11409205398443 in words is "eleven trillion, four hundred nine billion, two hundred five million, three hundred ninety-eight thousand, four hundred forty-three".