12032231 has 4 divisors (see below), whose sum is σ = 12151464. Its totient is φ = 11913000.

The previous prime is 12032221. The next prime is 12032233. The reversal of 12032231 is 13223021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12032231 is a prime.

It is a super-2 number, since 2×12032231² = 289549165674722, 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 (12032233) 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, 59465 + ... + 59666.

It is an arithmetic number, because the mean of its divisors is an integer number (3037866).

Almost surely, 2^12032231 is an apocalyptic number.

12032231 is a deficient number, since it is larger than the sum of its proper divisors (119233).

12032231 is a wasteful number, since it uses less digits than its factorization.

12032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119232.

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

The square root of 12032231 is about 3468.7506396396. The cubic root of 12032231 is about 229.1476390740.

Adding to 12032231 its reverse (13223021), we get a palindrome (25255252).

The spelling of 12032231 in words is "twelve million, thirty-two thousand, two hundred thirty-one".