12011291 has 8 divisors (see below), whose sum is σ = 12585984. Its totient is φ = 11448360.

The previous prime is 12011281. The next prime is 12011297. The reversal of 12011291 is 19211021.

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 12011291 - 2⁶ = 12011227 is a prime.

It is a super-2 number, since 2×12011291² = 288542222973362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011297) 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, 815 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (1573248).

Almost surely, 2^12011291 is an apocalyptic number.

12011291 is a deficient number, since it is larger than the sum of its proper divisors (574693).

12011291 is an equidigital number, since it uses as much as digits as its factorization.

12011291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5881.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 12011291 is about 3465.7309474337. The cubic root of 12011291 is about 229.0146313821.

It can be divided in two parts, 120 and 11291, that added together give a palindrome (11411).

The spelling of 12011291 in words is "twelve million, eleven thousand, two hundred ninety-one".