12030031 has 4 divisors (see below), whose sum is σ = 12955432. Its totient is φ = 11104632.

The previous prime is 12030017. The next prime is 12030043. The reversal of 12030031 is 13003021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12030031 - 2²³ = 3641423 is a prime.

It is a super-2 number, since 2×12030031² = 289443291721922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12030061) 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, 462681 + ... + 462706.

It is an arithmetic number, because the mean of its divisors is an integer number (3238858).

Almost surely, 2^12030031 is an apocalyptic number.

12030031 is a deficient number, since it is larger than the sum of its proper divisors (925401).

12030031 is an equidigital number, since it uses as much as digits as its factorization.

12030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925400.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 12030031 is about 3468.4335080840. The cubic root of 12030031 is about 229.1336722673.

Adding to 12030031 its reverse (13003021), we get a palindrome (25033052).

The spelling of 12030031 in words is "twelve million, thirty thousand, thirty-one".