12100243427 has 2 divisors, whose sum is σ = 12100243428. Its totient is φ = 12100243426.

The previous prime is 12100243339. The next prime is 12100243469. The reversal of 12100243427 is 72434200121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12100243427 - 2¹⁶ = 12100177891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12100243396 and 12100243405.

It is not a weakly prime, because it can be changed into another prime (12100243487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050121713 + 6050121714.

It is an arithmetic number, because the mean of its divisors is an integer number (6050121714).

Almost surely, 2^12100243427 is an apocalyptic number.

12100243427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100243427 is an equidigital number, since it uses as much as digits as its factorization.

12100243427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 12100243427 its reverse (72434200121), we get a palindrome (84534443548).

The spelling of 12100243427 in words is "twelve billion, one hundred million, two hundred forty-three thousand, four hundred twenty-seven".