12232031 has 4 divisors (see below), whose sum is σ = 13979472. Its totient is φ = 10484592.

The previous prime is 12232019. The next prime is 12232039. The reversal of 12232031 is 13023221.

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: 13023221 = 23 ⋅566227.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12232031 is a prime.

It is a super-2 number, since 2×12232031² = 299245164769922, 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 = 12231997 and 12232015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232039) 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, 873710 + ... + 873723.

It is an arithmetic number, because the mean of its divisors is an integer number (3494868).

Almost surely, 2^12232031 is an apocalyptic number.

12232031 is a deficient number, since it is larger than the sum of its proper divisors (1747441).

12232031 is an equidigital number, since it uses as much as digits as its factorization.

12232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1747440.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 12232031 is about 3497.4320579534. The cubic root of 12232031 is about 230.4090452560.

Adding to 12232031 its reverse (13023221), we get a palindrome (25255252).

The spelling of 12232031 in words is "twelve million, two hundred thirty-two thousand, thirty-one".