111312222023 has 4 divisors (see below), whose sum is σ = 111325035528. Its totient is φ = 111299408520.

The previous prime is 111312222013. The next prime is 111312222037. The reversal of 111312222023 is 320222213111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111312222023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111312221986 and 111312222004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111312222013) 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 3 ways as a sum of consecutive naturals, for example, 6393713 + ... + 6411098.

It is an arithmetic number, because the mean of its divisors is an integer number (27831258882).

Almost surely, 2^111312222023 is an apocalyptic number.

111312222023 is a deficient number, since it is larger than the sum of its proper divisors (12813505).

111312222023 is an equidigital number, since it uses as much as digits as its factorization.

111312222023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12813504.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111312222023 its reverse (320222213111), we get a palindrome (431534435134).

The spelling of 111312222023 in words is "one hundred eleven billion, three hundred twelve million, two hundred twenty-two thousand, twenty-three".