111321423 has 24 divisors (see below), whose sum is σ = 172605888. Its totient is φ = 68884992.

The previous prime is 111321421. The next prime is 111321433. The reversal of 111321423 is 324123111.

It is not a de Polignac number, because 111321423 - 2¹ = 111321421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111321396 and 111321405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111321421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6186 + ... + 16152.

It is an arithmetic number, because the mean of its divisors is an integer number (7191912).

Almost surely, 2^111321423 is an apocalyptic number.

111321423 is a deficient number, since it is larger than the sum of its proper divisors (61284465).

111321423 is a wasteful number, since it uses less digits than its factorization.

111321423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10063 (or 10060 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 111321423 is about 10550.8967865296. The cubic root of 111321423 is about 481.0529878247.

Adding to 111321423 its reverse (324123111), we get a palindrome (435444534).

The spelling of 111321423 in words is "one hundred eleven million, three hundred twenty-one thousand, four hundred twenty-three".