12698311 has 2 divisors, whose sum is σ = 12698312. Its totient is φ = 12698310.

The previous prime is 12698299. The next prime is 12698321. The reversal of 12698311 is 11389621.

It is a strong prime.

It is an emirp because it is prime and its reverse (11389621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12698311 - 2⁹ = 12697799 is a prime.

It is a super-2 number, since 2×12698311² = 322494204505442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12698321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6349155 + 6349156.

It is an arithmetic number, because the mean of its divisors is an integer number (6349156).

Almost surely, 2^12698311 is an apocalyptic number.

12698311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12698311 is an equidigital number, since it uses as much as digits as its factorization.

12698311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 31.

The square root of 12698311 is about 3563.4689559473. The cubic root of 12698311 is about 233.3003121071.

Subtracting from 12698311 its sum of digits (31), we obtain a triangular number (12698280 = T₅₀₃₉).

The spelling of 12698311 in words is "twelve million, six hundred ninety-eight thousand, three hundred eleven".