111302111311 has 4 divisors (see below), whose sum is σ = 111582469672. Its totient is φ = 111021752952.

The previous prime is 111302111287. The next prime is 111302111329. The reversal of 111302111311 is 113111203111.

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

It is a cyclic number.

It is not a de Polignac number, because 111302111311 - 2⁷ = 111302111183 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 (111312111311) 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, 140178585 + ... + 140179378.

It is an arithmetic number, because the mean of its divisors is an integer number (27895617418).

Almost surely, 2^111302111311 is an apocalyptic number.

111302111311 is a deficient number, since it is larger than the sum of its proper divisors (280358361).

111302111311 is an equidigital number, since it uses as much as digits as its factorization.

111302111311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280358360.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 111302111311 its reverse (113111203111), we get a palindrome (224413314422).

The spelling of 111302111311 in words is "one hundred eleven billion, three hundred two million, one hundred eleven thousand, three hundred eleven".