12424837121 has 2 divisors, whose sum is σ = 12424837122. Its totient is φ = 12424837120.

The previous prime is 12424837069. The next prime is 12424837127. The reversal of 12424837121 is 12173842421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6393761521 + 6031075600 = 79961^2 + 77660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12424837121 is a prime.

It is not a weakly prime, because it can be changed into another prime (12424837127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6212418560 + 6212418561.

It is an arithmetic number, because the mean of its divisors is an integer number (6212418561).

Almost surely, 2^12424837121 is an apocalyptic number.

It is an amenable number.

12424837121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12424837121 is an equidigital number, since it uses as much as digits as its factorization.

12424837121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 35.

The spelling of 12424837121 in words is "twelve billion, four hundred twenty-four million, eight hundred thirty-seven thousand, one hundred twenty-one".