1131302087 has 2 divisors, whose sum is σ = 1131302088. Its totient is φ = 1131302086.

The previous prime is 1131302083. The next prime is 1131302147. The reversal of 1131302087 is 7802031311.

It is a weak prime.

It is an emirp because it is prime and its reverse (7802031311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1131302087 - 2² = 1131302083 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131302083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565651043 + 565651044.

It is an arithmetic number, because the mean of its divisors is an integer number (565651044).

Almost surely, 2^1131302087 is an apocalyptic number.

1131302087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131302087 is an equidigital number, since it uses as much as digits as its factorization.

1131302087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1131302087 is about 33634.8344280153. The cubic root of 1131302087 is about 1041.9803510994.

Adding to 1131302087 its reverse (7802031311), we get a palindrome (8933333398).

The spelling of 1131302087 in words is "one billion, one hundred thirty-one million, three hundred two thousand, eighty-seven".