11113345667887 has 2 divisors, whose sum is σ = 11113345667888. Its totient is φ = 11113345667886.

The previous prime is 11113345667843. The next prime is 11113345667917. The reversal of 11113345667887 is 78876654331111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11113345667887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11113345667807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556672833943 + 5556672833944.

It is an arithmetic number, because the mean of its divisors is an integer number (5556672833944).

Almost surely, 2^{11113345667887} is an apocalyptic number.

11113345667887 is a deficient number, since it is larger than the sum of its proper divisors (1).

11113345667887 is an equidigital number, since it uses as much as digits as its factorization.

11113345667887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20321280, while the sum is 61.

Adding to 11113345667887 its reverse (78876654331111), we get a palindrome (89989999998998).

The spelling of 11113345667887 in words is "eleven trillion, one hundred thirteen billion, three hundred forty-five million, six hundred sixty-seven thousand, eight hundred eighty-seven".