12312233 has 8 divisors (see below), whose sum is σ = 13340448. Its totient is φ = 11317824.

The previous prime is 12312227. The next prime is 12312241. The reversal of 12312233 is 33221321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12312233 - 2⁴ = 12312217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7691 + ... + 9152.

It is an arithmetic number, because the mean of its divisors is an integer number (1667556).

Almost surely, 2^12312233 is an apocalyptic number.

It is an amenable number.

12312233 is a deficient number, since it is larger than the sum of its proper divisors (1028215).

12312233 is a wasteful number, since it uses less digits than its factorization.

12312233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16903.

The product of its digits is 216, while the sum is 17.

The square root of 12312233 is about 3508.8791657736. The cubic root of 12312233 is about 230.9115244963.

Adding to 12312233 its reverse (33221321), we get a palindrome (45533554).

The spelling of 12312233 in words is "twelve million, three hundred twelve thousand, two hundred thirty-three".