1131423045287 has 2 divisors, whose sum is σ = 1131423045288. Its totient is φ = 1131423045286.

The previous prime is 1131423045281. The next prime is 1131423045323. The reversal of 1131423045287 is 7825403241311.

It is a weak prime.

It is an emirp because it is prime and its reverse (7825403241311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131423045287 - 2⁶ = 1131423045223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131423045281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565711522643 + 565711522644.

It is an arithmetic number, because the mean of its divisors is an integer number (565711522644).

Almost surely, 2^{1131423045287} is an apocalyptic number.

1131423045287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131423045287 is an equidigital number, since it uses as much as digits as its factorization.

1131423045287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 41.

Adding to 1131423045287 its reverse (7825403241311), we get a palindrome (8956826286598).

The spelling of 1131423045287 in words is "one trillion, one hundred thirty-one billion, four hundred twenty-three million, forty-five thousand, two hundred eighty-seven".