12031118 has 8 divisors (see below), whose sum is σ = 19687320. Its totient is φ = 5468680.

The previous prime is 12031111. The next prime is 12031133. The reversal of 12031118 is 81113021.

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

It is a junction number, because it is equal to n+sod(n) for n = 12031096 and 12031105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273413 + ... + 273456.

It is an arithmetic number, because the mean of its divisors is an integer number (2460915).

Almost surely, 2^12031118 is an apocalyptic number.

12031118 is a deficient number, since it is larger than the sum of its proper divisors (7656202).

12031118 is a wasteful number, since it uses less digits than its factorization.

12031118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546882.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 12031118 is about 3468.5902035265. The cubic root of 12031118 is about 229.1405733523.

Adding to 12031118 its reverse (81113021), we get a palindrome (93144139).

The spelling of 12031118 in words is "twelve million, thirty-one thousand, one hundred eighteen".