12031055 has 8 divisors (see below), whose sum is σ = 14471232. Its totient is φ = 9602208.

The previous prime is 12031051. The next prime is 12031079. The reversal of 12031055 is 55013021.

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 12031055 - 2² = 12031051 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 (12031051) 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, 284 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (1808904).

Almost surely, 2^12031055 is an apocalyptic number.

12031055 is a deficient number, since it is larger than the sum of its proper divisors (2440177).

12031055 is an equidigital number, since it uses as much as digits as its factorization.

12031055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5665.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 12031055 is about 3468.5811220152. The cubic root of 12031055 is about 229.1401733928.

Adding to 12031055 its reverse (55013021), we get a palindrome (67044076).

The spelling of 12031055 in words is "twelve million, thirty-one thousand, fifty-five".