1131324487 has 2 divisors, whose sum is σ = 1131324488. Its totient is φ = 1131324486.

The previous prime is 1131324431. The next prime is 1131324527. The reversal of 1131324487 is 7844231311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131324487 - 2¹⁵ = 1131291719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131324427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565662243 + 565662244.

It is an arithmetic number, because the mean of its divisors is an integer number (565662244).

Almost surely, 2^1131324487 is an apocalyptic number.

1131324487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131324487 is an equidigital number, since it uses as much as digits as its factorization.

1131324487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 1131324487 is about 33635.1674144786. The cubic root of 1131324487 is about 1041.9872281914.

Adding to 1131324487 its reverse (7844231311), we get a palindrome (8975555798).

The spelling of 1131324487 in words is "one billion, one hundred thirty-one million, three hundred twenty-four thousand, four hundred eighty-seven".