111320312099 has 4 divisors (see below), whose sum is σ = 111321085464. Its totient is φ = 111319538736.

The previous prime is 111320312093. The next prime is 111320312111. The reversal of 111320312099 is 990213023111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 111320312099 - 2¹² = 111320308003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111320312093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99842 + ... + 482295.

It is an arithmetic number, because the mean of its divisors is an integer number (27830271366).

Almost surely, 2^111320312099 is an apocalyptic number.

111320312099 is a deficient number, since it is larger than the sum of its proper divisors (773365).

111320312099 is an equidigital number, since it uses as much as digits as its factorization.

111320312099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773364.

The product of its (nonzero) digits is 2916, while the sum is 32.

The spelling of 111320312099 in words is "one hundred eleven billion, three hundred twenty million, three hundred twelve thousand, ninety-nine".