1323511087 has 2 divisors, whose sum is σ = 1323511088. Its totient is φ = 1323511086.

The previous prime is 1323511073. The next prime is 1323511093. The reversal of 1323511087 is 7801153231.

It is a strong prime.

It is an emirp because it is prime and its reverse (7801153231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323511087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323512087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661755543 + 661755544.

It is an arithmetic number, because the mean of its divisors is an integer number (661755544).

Almost surely, 2^1323511087 is an apocalyptic number.

1323511087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323511087 is an equidigital number, since it uses as much as digits as its factorization.

1323511087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1323511087 is about 36380.0919047767. The cubic root of 1323511087 is about 1097.9330571339.

The spelling of 1323511087 in words is "one billion, three hundred twenty-three million, five hundred eleven thousand, eighty-seven".