1131087427 has 2 divisors, whose sum is σ = 1131087428. Its totient is φ = 1131087426.

The previous prime is 1131087389. The next prime is 1131087449. The reversal of 1131087427 is 7247801311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131087427 - 2¹¹ = 1131085379 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1131087392 and 1131087401.

It is not a weakly prime, because it can be changed into another prime (1131087457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565543713 + 565543714.

It is an arithmetic number, because the mean of its divisors is an integer number (565543714).

Almost surely, 2^1131087427 is an apocalyptic number.

1131087427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131087427 is an equidigital number, since it uses as much as digits as its factorization.

1131087427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 1131087427 is about 33631.6432396634. The cubic root of 1131087427 is about 1041.9144430767.

Adding to 1131087427 its reverse (7247801311), we get a palindrome (8378888738).

The spelling of 1131087427 in words is "one billion, one hundred thirty-one million, eighty-seven thousand, four hundred twenty-seven".