111203312023 has 4 divisors (see below), whose sum is σ = 113915587968. Its totient is φ = 108491036080.

The previous prime is 111203312021. The next prime is 111203312027. The reversal of 111203312023 is 320213302111.

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 111203312023 - 2¹ = 111203312021 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 (111203312021) 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, 1356137911 + ... + 1356137992.

It is an arithmetic number, because the mean of its divisors is an integer number (28478896992).

Almost surely, 2^111203312023 is an apocalyptic number.

111203312023 is a deficient number, since it is larger than the sum of its proper divisors (2712275945).

111203312023 is an equidigital number, since it uses as much as digits as its factorization.

111203312023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712275944.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111203312023 its reverse (320213302111), we get a palindrome (431416614134).

The spelling of 111203312023 in words is "one hundred eleven billion, two hundred three million, three hundred twelve thousand, twenty-three".