111303212113 has 4 divisors (see below), whose sum is σ = 115141253940. Its totient is φ = 107465170288.

The previous prime is 111303212063. The next prime is 111303212129. The reversal of 111303212113 is 311212303111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19289876544 + 92013335569 = 138888^2 + 303337^2 .

It is a cyclic number.

It is not a de Polignac number, because 111303212113 - 2²⁹ = 110766341201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111303212173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1919020870 + ... + 1919020927.

It is an arithmetic number, because the mean of its divisors is an integer number (28785313485).

Almost surely, 2^111303212113 is an apocalyptic number.

It is an amenable number.

111303212113 is a deficient number, since it is larger than the sum of its proper divisors (3838041827).

111303212113 is an equidigital number, since it uses as much as digits as its factorization.

111303212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3838041826.

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

Adding to 111303212113 its reverse (311212303111), we get a palindrome (422515515224).

The spelling of 111303212113 in words is "one hundred eleven billion, three hundred three million, two hundred twelve thousand, one hundred thirteen".