11326880999 has 4 divisors (see below), whose sum is σ = 12945006864. Its totient is φ = 9708755136.

The previous prime is 11326880941. The next prime is 11326881053. The reversal of 11326880999 is 99908862311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99908862311 = 2339 ⋅42714349.

It is a cyclic number.

It is not a de Polignac number, because 11326880999 - 2¹² = 11326876903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11326880599) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809062922 + ... + 809062935.

It is an arithmetic number, because the mean of its divisors is an integer number (3236251716).

Almost surely, 2^11326880999 is an apocalyptic number.

11326880999 is a deficient number, since it is larger than the sum of its proper divisors (1618125865).

11326880999 is an equidigital number, since it uses as much as digits as its factorization.

11326880999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618125864.

The product of its (nonzero) digits is 1679616, while the sum is 56.

The spelling of 11326880999 in words is "eleven billion, three hundred twenty-six million, eight hundred eighty thousand, nine hundred ninety-nine".