111909302213 has 2 divisors, whose sum is σ = 111909302214. Its totient is φ = 111909302212.

The previous prime is 111909302209. The next prime is 111909302243. The reversal of 111909302213 is 312203909111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76564550209 + 35344752004 = 276703^2 + 188002^2 .

It is an emirp because it is prime and its reverse (312203909111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111909302213 - 2² = 111909302209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111909302213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111909302243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55954651106 + 55954651107.

It is an arithmetic number, because the mean of its divisors is an integer number (55954651107).

Almost surely, 2^111909302213 is an apocalyptic number.

It is an amenable number.

111909302213 is a deficient number, since it is larger than the sum of its proper divisors (1).

111909302213 is an equidigital number, since it uses as much as digits as its factorization.

111909302213 is an evil number, because the sum of its binary digits is even.

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

The spelling of 111909302213 in words is "one hundred eleven billion, nine hundred nine million, three hundred two thousand, two hundred thirteen".