12233131 has 4 divisors (see below), whose sum is σ = 12877000. Its totient is φ = 11589264.

The previous prime is 12233107. The next prime is 12233159. The reversal of 12233131 is 13133221.

12233131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13133221 = 103 ⋅127507.

It is a cyclic number.

It is not a de Polignac number, because 12233131 - 2¹¹ = 12231083 is a prime.

It is a super-2 number, since 2×12233131² = 299298988126322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12233101) 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, 321906 + ... + 321943.

It is an arithmetic number, because the mean of its divisors is an integer number (3219250).

Almost surely, 2^12233131 is an apocalyptic number.

12233131 is a deficient number, since it is larger than the sum of its proper divisors (643869).

12233131 is an equidigital number, since it uses as much as digits as its factorization.

12233131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643868.

The product of its digits is 108, while the sum is 16.

The square root of 12233131 is about 3497.5893126552. The cubic root of 12233131 is about 230.4159517774.

Adding to 12233131 its reverse (13133221), we get a palindrome (25366352).

The spelling of 12233131 in words is "twelve million, two hundred thirty-three thousand, one hundred thirty-one".