12131027 has 2 divisors, whose sum is σ = 12131028. Its totient is φ = 12131026.

The previous prime is 12131017. The next prime is 12131057. The reversal of 12131027 is 72013121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12131027 - 2⁸ = 12130771 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12130996 and 12131014.

It is not a weakly prime, because it can be changed into another prime (12131017) 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 as a sum of consecutive naturals, namely, 6065513 + 6065514.

It is an arithmetic number, because the mean of its divisors is an integer number (6065514).

Almost surely, 2^12131027 is an apocalyptic number.

12131027 is a deficient number, since it is larger than the sum of its proper divisors (1).

12131027 is an equidigital number, since it uses as much as digits as its factorization.

12131027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 12131027 is about 3482.9623885423. The cubic root of 12131027 is about 229.7731032704.

Adding to 12131027 its reverse (72013121), we get a palindrome (84144148).

The spelling of 12131027 in words is "twelve million, one hundred thirty-one thousand, twenty-seven".