1113129187 has 2 divisors, whose sum is σ = 1113129188. Its totient is φ = 1113129186.

The previous prime is 1113129167. The next prime is 1113129203. The reversal of 1113129187 is 7819213111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113129187 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113129107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556564593 + 556564594.

It is an arithmetic number, because the mean of its divisors is an integer number (556564594).

Almost surely, 2^1113129187 is an apocalyptic number.

1113129187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113129187 is an equidigital number, since it uses as much as digits as its factorization.

1113129187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 34.

The square root of 1113129187 is about 33363.5907390077. The cubic root of 1113129187 is about 1036.3708524958.

The spelling of 1113129187 in words is "one billion, one hundred thirteen million, one hundred twenty-nine thousand, one hundred eighty-seven".