111203311213 has 16 divisors (see below), whose sum is σ = 112283449344. Its totient is φ = 110130196480.

The previous prime is 111203311151. The next prime is 111203311237. The reversal of 111203311213 is 312113302111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111203311213 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 (111203351213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35111556 + ... + 35114722.

It is an arithmetic number, because the mean of its divisors is an integer number (7017715584).

Almost surely, 2^111203311213 is an apocalyptic number.

It is an amenable number.

111203311213 is a deficient number, since it is larger than the sum of its proper divisors (1080138131).

111203311213 is a wasteful number, since it uses less digits than its factorization.

111203311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111203311213 its reverse (312113302111), we get a palindrome (423316613324).

The spelling of 111203311213 in words is "one hundred eleven billion, two hundred three million, three hundred eleven thousand, two hundred thirteen".