12231320113 has 2 divisors, whose sum is σ = 12231320114. Its totient is φ = 12231320112.

The previous prime is 12231320083. The next prime is 12231320117. The reversal of 12231320113 is 31102313221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11838963249 + 392356864 = 108807^2 + 19808^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231320113 - 2¹⁷ = 12231189041 is a prime.

It is not a weakly prime, because it can be changed into another prime (12231320117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115660056 + 6115660057.

It is an arithmetic number, because the mean of its divisors is an integer number (6115660057).

Almost surely, 2^12231320113 is an apocalyptic number.

It is an amenable number.

12231320113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231320113 is an equidigital number, since it uses as much as digits as its factorization.

12231320113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12231320113 its reverse (31102313221), we get a palindrome (43333633334).

The spelling of 12231320113 in words is "twelve billion, two hundred thirty-one million, three hundred twenty thousand, one hundred thirteen".