12023331 has 4 divisors (see below), whose sum is σ = 16031112. Its totient is φ = 8015552.

The previous prime is 12023329. The next prime is 12023357. The reversal of 12023331 is 13332021.

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 12023331 - 2¹ = 12023329 is a prime.

It is a super-2 number, since 2×12023331² = 289120976671122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12023331.

It is not an unprimeable number, because it can be changed into a prime (12023831) 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, 2003886 + ... + 2003891.

It is an arithmetic number, because the mean of its divisors is an integer number (4007778).

Almost surely, 2^12023331 is an apocalyptic number.

12023331 is a deficient number, since it is larger than the sum of its proper divisors (4007781).

12023331 is an equidigital number, since it uses as much as digits as its factorization.

12023331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007780.

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

The square root of 12023331 is about 3467.4675196748. The cubic root of 12023331 is about 229.0911265001.

Adding to 12023331 its reverse (13332021), we get a palindrome (25355352).

The spelling of 12023331 in words is "twelve million, twenty-three thousand, three hundred thirty-one".