12031322417 has 2 divisors, whose sum is σ = 12031322418. Its totient is φ = 12031322416.

The previous prime is 12031322393. The next prime is 12031322431. The reversal of 12031322417 is 71422313021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12003612721 + 27709696 = 109561^2 + 5264^2 .

It is an emirp because it is prime and its reverse (71422313021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031322417 is a prime.

It is not a weakly prime, because it can be changed into another prime (12031322477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015661208 + 6015661209.

It is an arithmetic number, because the mean of its divisors is an integer number (6015661209).

Almost surely, 2^12031322417 is an apocalyptic number.

It is an amenable number.

12031322417 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031322417 is an equidigital number, since it uses as much as digits as its factorization.

12031322417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 26.

Adding to 12031322417 its reverse (71422313021), we get a palindrome (83453635438).

The spelling of 12031322417 in words is "twelve billion, thirty-one million, three hundred twenty-two thousand, four hundred seventeen".