12233831 has 4 divisors (see below), whose sum is σ = 12464712. Its totient is φ = 12002952.

The previous prime is 12233821. The next prime is 12233843. The reversal of 12233831 is 13833221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13833221 = 127 ⋅108923.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12233831 is a prime.

It is a super-2 number, since 2×12233831² = 299333241873122, 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 = 12233797 and 12233806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12233821) 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, 115361 + ... + 115466.

It is an arithmetic number, because the mean of its divisors is an integer number (3116178).

Almost surely, 2^12233831 is an apocalyptic number.

12233831 is a deficient number, since it is larger than the sum of its proper divisors (230881).

12233831 is an equidigital number, since it uses as much as digits as its factorization.

12233831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230880.

The product of its digits is 864, while the sum is 23.

The square root of 12233831 is about 3497.6893801480. The cubic root of 12233831 is about 230.4203466209.

The spelling of 12233831 in words is "twelve million, two hundred thirty-three thousand, eight hundred thirty-one".