111720222723 has 16 divisors (see below), whose sum is σ = 155579247360. Its totient is φ = 71238910176.

The previous prime is 111720222707. The next prime is 111720222727. The reversal of 111720222723 is 327222027111.

It is a happy number.

It is not a de Polignac number, because 111720222723 - 2⁴ = 111720222707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111720222727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8523015 + ... + 8536112.

It is an arithmetic number, because the mean of its divisors is an integer number (9723702960).

Almost surely, 2^111720222723 is an apocalyptic number.

111720222723 is a deficient number, since it is larger than the sum of its proper divisors (43859024637).

111720222723 is a wasteful number, since it uses less digits than its factorization.

111720222723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17059226.

The product of its (nonzero) digits is 4704, while the sum is 30.

Adding to 111720222723 its reverse (327222027111), we get a palindrome (438942249834).

The spelling of 111720222723 in words is "one hundred eleven billion, seven hundred twenty million, two hundred twenty-two thousand, seven hundred twenty-three".