12267331 has 4 divisors (see below), whose sum is σ = 12913000. Its totient is φ = 11621664.

The previous prime is 12267287. The next prime is 12267337. The reversal of 12267331 is 13376221.

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

It is a cyclic number.

It is not a de Polignac number, because 12267331 - 2²¹ = 10170179 is a prime.

It is a super-2 number, since 2×12267331² = 300974819727122, 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 = 12267296 and 12267305.

It is not an unprimeable number, because it can be changed into a prime (12267337) 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, 322806 + ... + 322843.

It is an arithmetic number, because the mean of its divisors is an integer number (3228250).

Almost surely, 2^12267331 is an apocalyptic number.

12267331 is a deficient number, since it is larger than the sum of its proper divisors (645669).

12267331 is an equidigital number, since it uses as much as digits as its factorization.

12267331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645668.

The product of its digits is 1512, while the sum is 25.

The square root of 12267331 is about 3502.4749820663. The cubic root of 12267331 is about 230.6304755813.

The spelling of 12267331 in words is "twelve million, two hundred sixty-seven thousand, three hundred thirty-one".