12811099 has 6 divisors (see below), whose sum is σ = 14902764. Its totient is φ = 10980900.

The previous prime is 12811079. The next prime is 12811103. The reversal of 12811099 is 99011821.

It is not a de Polignac number, because 12811099 - 2⁷ = 12810971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12811099.

It is not an unprimeable number, because it can be changed into a prime (12811009) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 130677 + ... + 130774.

It is an arithmetic number, because the mean of its divisors is an integer number (2483794).

Almost surely, 2^12811099 is an apocalyptic number.

12811099 is a deficient number, since it is larger than the sum of its proper divisors (2091665).

12811099 is an equidigital number, since it uses as much as digits as its factorization.

12811099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261465 (or 261458 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 31.

The square root of 12811099 is about 3579.2595603001. The cubic root of 12811099 is about 233.9890113426.

The spelling of 12811099 in words is "twelve million, eight hundred eleven thousand, ninety-nine".