12311087 has 2 divisors, whose sum is σ = 12311088. Its totient is φ = 12311086.

The previous prime is 12311063. The next prime is 12311093. The reversal of 12311087 is 78011321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12311087 - 2⁶ = 12311023 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155543 + 6155544.

It is an arithmetic number, because the mean of its divisors is an integer number (6155544).

Almost surely, 2^12311087 is an apocalyptic number.

12311087 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311087 is an equidigital number, since it uses as much as digits as its factorization.

12311087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 12311087 is about 3508.7158619643. The cubic root of 12311087 is about 230.9043600007.

The spelling of 12311087 in words is "twelve million, three hundred eleven thousand, eighty-seven".