12133523 has 2 divisors, whose sum is σ = 12133524. Its totient is φ = 12133522.

The previous prime is 12133519. The next prime is 12133543. The reversal of 12133523 is 32533121.

It is an a-pointer prime, because the next prime (12133543) can be obtained adding 12133523 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12133523 - 2² = 12133519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12133495 and 12133504.

It is not a weakly prime, because it can be changed into another prime (12133543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066761 + 6066762.

It is an arithmetic number, because the mean of its divisors is an integer number (6066762).

Almost surely, 2^12133523 is an apocalyptic number.

12133523 is a deficient number, since it is larger than the sum of its proper divisors (1).

12133523 is an equidigital number, since it uses as much as digits as its factorization.

12133523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 20.

The square root of 12133523 is about 3483.3206857825. The cubic root of 12133523 is about 229.7888610551.

Adding to 12133523 its reverse (32533121), we get a palindrome (44666644).

The spelling of 12133523 in words is "twelve million, one hundred thirty-three thousand, five hundred twenty-three".