12231040849 has 2 divisors, whose sum is σ = 12231040850. Its totient is φ = 12231040848.

The previous prime is 12231040819. The next prime is 12231040853. The reversal of 12231040849 is 94804013221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10566400849 + 1664640000 = 102793^2 + 40800^2 .

It is an emirp because it is prime and its reverse (94804013221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12231040849 - 2¹⁹ = 12230516561 is a prime.

It is not a weakly prime, because it can be changed into another prime (12231040819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115520424 + 6115520425.

It is an arithmetic number, because the mean of its divisors is an integer number (6115520425).

Almost surely, 2^12231040849 is an apocalyptic number.

It is an amenable number.

12231040849 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231040849 is an equidigital number, since it uses as much as digits as its factorization.

12231040849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 12231040849 in words is "twelve billion, two hundred thirty-one million, forty thousand, eight hundred forty-nine".