12131033 has 4 divisors (see below), whose sum is σ = 12138000. Its totient is φ = 12124068.

The previous prime is 12131027. The next prime is 12131057. The reversal of 12131033 is 33013121.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 33013121 = 43 ⋅767747.

It is a cyclic number.

It is not a de Polignac number, because 12131033 - 2⁴ = 12131017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12130999 and 12131017.

It is not an unprimeable number, because it can be changed into a prime (12131533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1718 + ... + 5216.

It is an arithmetic number, because the mean of its divisors is an integer number (3034500).

Almost surely, 2^12131033 is an apocalyptic number.

It is an amenable number.

12131033 is a deficient number, since it is larger than the sum of its proper divisors (6967).

12131033 is an equidigital number, since it uses as much as digits as its factorization.

12131033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6966.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 12131033 is about 3482.9632498779. The cubic root of 12131033 is about 229.7731411523.

Adding to 12131033 its reverse (33013121), we get a palindrome (45144154).

The spelling of 12131033 in words is "twelve million, one hundred thirty-one thousand, thirty-three".