11147385871 has 2 divisors, whose sum is σ = 11147385872. Its totient is φ = 11147385870.

The previous prime is 11147385853. The next prime is 11147385947. The reversal of 11147385871 is 17858374111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11147385871 - 2¹³ = 11147377679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11147385071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5573692935 + 5573692936.

It is an arithmetic number, because the mean of its divisors is an integer number (5573692936).

Almost surely, 2^11147385871 is an apocalyptic number.

11147385871 is a deficient number, since it is larger than the sum of its proper divisors (1).

11147385871 is an equidigital number, since it uses as much as digits as its factorization.

11147385871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 46.

The spelling of 11147385871 in words is "eleven billion, one hundred forty-seven million, three hundred eighty-five thousand, eight hundred seventy-one".