12023031 has 4 divisors (see below), whose sum is σ = 16030712. Its totient is φ = 8015352.

The previous prime is 12023021. The next prime is 12023051. The reversal of 12023031 is 13032021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13032021 = 3 ⋅4344007.

It is not a de Polignac number, because 12023031 - 2¹⁰ = 12022007 is a prime.

It is a super-2 number, since 2×12023031² = 289106548853922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12022998 and 12023016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2003836 + ... + 2003841.

It is an arithmetic number, because the mean of its divisors is an integer number (4007678).

Almost surely, 2^12023031 is an apocalyptic number.

12023031 is a deficient number, since it is larger than the sum of its proper divisors (4007681).

12023031 is an equidigital number, since it uses as much as digits as its factorization.

12023031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4007680.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 12023031 is about 3467.4242601678. The cubic root of 12023031 is about 229.0892210960.

Adding to 12023031 its reverse (13032021), we get a palindrome (25055052).

The spelling of 12023031 in words is "twelve million, twenty-three thousand, thirty-one".