12124413251 has 2 divisors, whose sum is σ = 12124413252. Its totient is φ = 12124413250.

The previous prime is 12124413239. The next prime is 12124413281. The reversal of 12124413251 is 15231442121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12124413251 - 2⁶ = 12124413187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12124413251.

It is not a weakly prime, because it can be changed into another prime (12124413281) 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, 6062206625 + 6062206626.

It is an arithmetic number, because the mean of its divisors is an integer number (6062206626).

Almost surely, 2^12124413251 is an apocalyptic number.

12124413251 is a deficient number, since it is larger than the sum of its proper divisors (1).

12124413251 is an equidigital number, since it uses as much as digits as its factorization.

12124413251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 26.

Adding to 12124413251 its reverse (15231442121), we get a palindrome (27355855372).

The spelling of 12124413251 in words is "twelve billion, one hundred twenty-four million, four hundred thirteen thousand, two hundred fifty-one".