1113122287 has 2 divisors, whose sum is σ = 1113122288. Its totient is φ = 1113122286.

The previous prime is 1113122281. The next prime is 1113122303. The reversal of 1113122287 is 7822213111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113122287 is a prime.

It is a super-2 number, since 2×1113122287² = 2478082451632220738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113122281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556561143 + 556561144.

It is an arithmetic number, because the mean of its divisors is an integer number (556561144).

Almost surely, 2^1113122287 is an apocalyptic number.

1113122287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113122287 is an equidigital number, since it uses as much as digits as its factorization.

1113122287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 28.

The square root of 1113122287 is about 33363.4873327115. The cubic root of 1113122287 is about 1036.3687110930.

Adding to 1113122287 its reverse (7822213111), we get a palindrome (8935335398).

The spelling of 1113122287 in words is "one billion, one hundred thirteen million, one hundred twenty-two thousand, two hundred eighty-seven".