111003120023 has 4 divisors (see below), whose sum is σ = 113097518568. Its totient is φ = 108908721480.

The previous prime is 111003120013. The next prime is 111003120029. The reversal of 111003120023 is 320021300111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320021300111 = 1019 ⋅314054269.

It is a cyclic number.

It is not a de Polignac number, because 111003120023 - 2⁸ = 111003119767 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 (111003120029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047199193 + ... + 1047199298.

It is an arithmetic number, because the mean of its divisors is an integer number (28274379642).

Almost surely, 2^111003120023 is an apocalyptic number.

111003120023 is a deficient number, since it is larger than the sum of its proper divisors (2094398545).

111003120023 is an equidigital number, since it uses as much as digits as its factorization.

111003120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094398544.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 111003120023 its reverse (320021300111), we get a palindrome (431024420134).

The spelling of 111003120023 in words is "one hundred eleven billion, three million, one hundred twenty thousand, twenty-three".