12400311169 has 2 divisors, whose sum is σ = 12400311170. Its totient is φ = 12400311168.

The previous prime is 12400311167. The next prime is 12400311193. The reversal of 12400311169 is 96111300421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10580179600 + 1820131569 = 102860^2 + 42663^2 .

It is an emirp because it is prime and its reverse (96111300421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12400311169 - 2¹ = 12400311167 is a prime.

It is a super-2 number, since 2×12400311169² (a number of 21 digits) contains 22 as substring.

Together with 12400311167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12400311167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6200155584 + 6200155585.

It is an arithmetic number, because the mean of its divisors is an integer number (6200155585).

Almost surely, 2^12400311169 is an apocalyptic number.

It is an amenable number.

12400311169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400311169 is an equidigital number, since it uses as much as digits as its factorization.

12400311169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The spelling of 12400311169 in words is "twelve billion, four hundred million, three hundred eleven thousand, one hundred sixty-nine".