111120213023 has 6 divisors (see below), whose sum is σ = 118041195456. Its totient is φ = 104583729632.

The previous prime is 111120213013. The next prime is 111120213041. The reversal of 111120213023 is 320312021111.

It is not a de Polignac number, because 111120213023 - 2¹⁴ = 111120196639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111120212992 and 111120213010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120213013) 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 5 ways as a sum of consecutive naturals, for example, 192249215 + ... + 192249792.

It is an arithmetic number, because the mean of its divisors is an integer number (19673532576).

Almost surely, 2^111120213023 is an apocalyptic number.

111120213023 is a deficient number, since it is larger than the sum of its proper divisors (6920982433).

111120213023 is an equidigital number, since it uses as much as digits as its factorization.

111120213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384499041 (or 384499024 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 111120213023 its reverse (320312021111), we get a palindrome (431432234134).

The spelling of 111120213023 in words is "one hundred eleven billion, one hundred twenty million, two hundred thirteen thousand, twenty-three".