12343224121 has 2 divisors, whose sum is σ = 12343224122. Its totient is φ = 12343224120.

The previous prime is 12343224043. The next prime is 12343224133. The reversal of 12343224121 is 12142234321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12086583721 + 256640400 = 109939^2 + 16020^2 .

It is a cyclic number.

It is not a de Polignac number, because 12343224121 - 2⁷ = 12343223993 is a prime.

It is not a weakly prime, because it can be changed into another prime (12343224181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6171612060 + 6171612061.

It is an arithmetic number, because the mean of its divisors is an integer number (6171612061).

Almost surely, 2^12343224121 is an apocalyptic number.

It is an amenable number.

12343224121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12343224121 is an equidigital number, since it uses as much as digits as its factorization.

12343224121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

Adding to 12343224121 its reverse (12142234321), we get a palindrome (24485458442).

The spelling of 12343224121 in words is "twelve billion, three hundred forty-three million, two hundred twenty-four thousand, one hundred twenty-one".