12312033 has 4 divisors (see below), whose sum is σ = 16416048. Its totient is φ = 8208020.

The previous prime is 12312031. The next prime is 12312043. The reversal of 12312033 is 33021321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33021321 = 3 ⋅11007107.

It is a cyclic number.

It is not a de Polignac number, because 12312033 - 2¹ = 12312031 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12312031) 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, 2052003 + ... + 2052008.

It is an arithmetic number, because the mean of its divisors is an integer number (4104012).

Almost surely, 2^12312033 is an apocalyptic number.

It is an amenable number.

12312033 is a deficient number, since it is larger than the sum of its proper divisors (4104015).

12312033 is an equidigital number, since it uses as much as digits as its factorization.

12312033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104014.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 12312033 is about 3508.8506665289. The cubic root of 12312033 is about 230.9102741801.

Adding to 12312033 its reverse (33021321), we get a palindrome (45333354).

The spelling of 12312033 in words is "twelve million, three hundred twelve thousand, thirty-three".