1323040087 has 2 divisors, whose sum is σ = 1323040088. Its totient is φ = 1323040086.

The previous prime is 1323040067. The next prime is 1323040189. The reversal of 1323040087 is 7800403231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1323040087 - 2²³ = 1314651479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323040027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661520043 + 661520044.

It is an arithmetic number, because the mean of its divisors is an integer number (661520044).

Almost surely, 2^1323040087 is an apocalyptic number.

1323040087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323040087 is an equidigital number, since it uses as much as digits as its factorization.

1323040087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1323040087 is about 36373.6180081113. The cubic root of 1323040087 is about 1097.8028006189.

The spelling of 1323040087 in words is "one billion, three hundred twenty-three million, forty thousand, eighty-seven".