12055331 has 4 divisors (see below), whose sum is σ = 12142200. Its totient is φ = 11968464.

The previous prime is 12055319. The next prime is 12055343. The reversal of 12055331 is 13355021.

12055331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13355021 = 193 ⋅69197.

It is an interprime number because it is at equal distance from previous prime (12055319) and next prime (12055343).

It is a cyclic number.

It is not a de Polignac number, because 12055331 - 2¹⁰ = 12054307 is a prime.

It is a super-2 number, since 2×12055331² = 290662011039122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12055301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43226 + ... + 43503.

It is an arithmetic number, because the mean of its divisors is an integer number (3035550).

Almost surely, 2^12055331 is an apocalyptic number.

12055331 is a deficient number, since it is larger than the sum of its proper divisors (86869).

12055331 is an equidigital number, since it uses as much as digits as its factorization.

12055331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86868.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 12055331 is about 3472.0787721479. The cubic root of 12055331 is about 229.2941878625.

The spelling of 12055331 in words is "twelve million, fifty-five thousand, three hundred thirty-one".