11321332391 has 2 divisors, whose sum is σ = 11321332392. Its totient is φ = 11321332390.

The previous prime is 11321332369. The next prime is 11321332433. The reversal of 11321332391 is 19323312311.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (19323312311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11321332391 - 2⁶ = 11321332327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321332331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660666195 + 5660666196.

It is an arithmetic number, because the mean of its divisors is an integer number (5660666196).

Almost surely, 2^11321332391 is an apocalyptic number.

11321332391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321332391 is an equidigital number, since it uses as much as digits as its factorization.

11321332391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 29.

The spelling of 11321332391 in words is "eleven billion, three hundred twenty-one million, three hundred thirty-two thousand, three hundred ninety-one".