12031133 has 2 divisors, whose sum is σ = 12031134. Its totient is φ = 12031132.

The previous prime is 12031111. The next prime is 12031141. The reversal of 12031133 is 33113021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9351364 + 2679769 = 3058^2 + 1637^2 .

It is an emirp because it is prime and its reverse (33113021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12031133 - 2⁸ = 12030877 is a prime.

It is a super-2 number, since 2×12031133² = 289496322527378, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12031153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015566 + 6015567.

It is an arithmetic number, because the mean of its divisors is an integer number (6015567).

Almost surely, 2^12031133 is an apocalyptic number.

It is an amenable number.

12031133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031133 is an equidigital number, since it uses as much as digits as its factorization.

12031133 is an evil number, because the sum of its binary digits is even.

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

The square root of 12031133 is about 3468.5923657876. The cubic root of 12031133 is about 229.1406685806.

Adding to 12031133 its reverse (33113021), we get a palindrome (45144154).

The spelling of 12031133 in words is "twelve million, thirty-one thousand, one hundred thirty-three".