12331867 has 4 divisors (see below), whose sum is σ = 12351240. Its totient is φ = 12312496.

The previous prime is 12331859. The next prime is 12331871. The reversal of 12331867 is 76813321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76813321 = 13 ⋅5908717.

It is a cyclic number.

It is not a de Polignac number, because 12331867 - 2³ = 12331859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331897) 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, 8698 + ... + 10015.

It is an arithmetic number, because the mean of its divisors is an integer number (3087810).

Almost surely, 2^12331867 is an apocalyptic number.

12331867 is a deficient number, since it is larger than the sum of its proper divisors (19373).

12331867 is an equidigital number, since it uses as much as digits as its factorization.

12331867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19372.

The product of its digits is 6048, while the sum is 31.

The square root of 12331867 is about 3511.6758107775. The cubic root of 12331867 is about 231.0342021907.

The spelling of 12331867 in words is "twelve million, three hundred thirty-one thousand, eight hundred sixty-seven".