111312103230311 has 4 divisors (see below), whose sum is σ = 111933958555800. Its totient is φ = 110690247904824.

The previous prime is 111312103230227. The next prime is 111312103230353. The reversal of 111312103230311 is 113032301213111.

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 111312103230311 - 2⁴⁶ = 40943359052647 is a prime.

It is a super-2 number, since 2×111312103230311² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312103230011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310927662476 + ... + 310927662833.

It is an arithmetic number, because the mean of its divisors is an integer number (27983489638950).

Almost surely, 2^{111312103230311} is an apocalyptic number.

111312103230311 is a deficient number, since it is larger than the sum of its proper divisors (621855325489).

111312103230311 is an equidigital number, since it uses as much as digits as its factorization.

111312103230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621855325488.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 111312103230311 its reverse (113032301213111), we get a palindrome (224344404443422).

The spelling of 111312103230311 in words is "one hundred eleven trillion, three hundred twelve billion, one hundred three million, two hundred thirty thousand, three hundred eleven".