12791311 has 8 divisors (see below), whose sum is σ = 13806464. Its totient is φ = 11780640.

The previous prime is 12791309. The next prime is 12791323. The reversal of 12791311 is 11319721.

12791311 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12791311 - 2¹ = 12791309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12791341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7081 + ... + 8701.

It is an arithmetic number, because the mean of its divisors is an integer number (1725808).

Almost surely, 2^12791311 is an apocalyptic number.

12791311 is a deficient number, since it is larger than the sum of its proper divisors (1015153).

12791311 is a wasteful number, since it uses less digits than its factorization.

12791311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241.

The product of its digits is 378, while the sum is 25.

The square root of 12791311 is about 3576.4942331842. The cubic root of 12791311 is about 233.8684762628.

The spelling of 12791311 in words is "twelve million, seven hundred ninety-one thousand, three hundred eleven".