1126811186987 has 2 divisors, whose sum is σ = 1126811186988. Its totient is φ = 1126811186986.

The previous prime is 1126811186947. The next prime is 1126811187041. The reversal of 1126811186987 is 7896811186211.

It is a weak prime.

It is an emirp because it is prime and its reverse (7896811186211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1126811186987 - 2²⁴ = 1126794409771 is a prime.

It is a super-2 number, since 2×1126811186987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1126811186947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 563405593493 + 563405593494.

It is an arithmetic number, because the mean of its divisors is an integer number (563405593494).

Almost surely, 2^{1126811186987} is an apocalyptic number.

1126811186987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1126811186987 is an equidigital number, since it uses as much as digits as its factorization.

1126811186987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 59.

The spelling of 1126811186987 in words is "one trillion, one hundred twenty-six billion, eight hundred eleven million, one hundred eighty-six thousand, nine hundred eighty-seven".