11321346447469 has 2 divisors, whose sum is σ = 11321346447470. Its totient is φ = 11321346447468.

The previous prime is 11321346447419. The next prime is 11321346447487. The reversal of 11321346447469 is 96474464312311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11079331644969 + 242014802500 = 3328563^2 + 491950^2 .

It is an emirp because it is prime and its reverse (96474464312311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11321346447469 is a prime.

It is a super-2 number, since 2×11321346447469² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321346447419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660673223734 + 5660673223735.

It is an arithmetic number, because the mean of its divisors is an integer number (5660673223735).

Almost surely, 2^{11321346447469} is an apocalyptic number.

It is an amenable number.

11321346447469 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321346447469 is an equidigital number, since it uses as much as digits as its factorization.

11321346447469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10450944, while the sum is 55.

The spelling of 11321346447469 in words is "eleven trillion, three hundred twenty-one billion, three hundred forty-six million, four hundred forty-seven thousand, four hundred sixty-nine".