11321221955467 has 2 divisors, whose sum is σ = 11321221955468. Its totient is φ = 11321221955466.

The previous prime is 11321221955411. The next prime is 11321221955503. The reversal of 11321221955467 is 76455912212311.

It is a strong prime.

It is an emirp because it is prime and its reverse (76455912212311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11321221955467 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11321221955467.

It is not a weakly prime, because it can be changed into another prime (11321221905467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660610977733 + 5660610977734.

It is an arithmetic number, because the mean of its divisors is an integer number (5660610977734).

Almost surely, 2^{11321221955467} is an apocalyptic number.

11321221955467 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321221955467 is an equidigital number, since it uses as much as digits as its factorization.

11321221955467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 49.

The spelling of 11321221955467 in words is "eleven trillion, three hundred twenty-one billion, two hundred twenty-one million, nine hundred fifty-five thousand, four hundred sixty-seven".