111321011023 has 8 divisors (see below), whose sum is σ = 113216140800. Its totient is φ = 109426159128.

The previous prime is 111321010993. The next prime is 111321011059. The reversal of 111321011023 is 320110123111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111321011023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111321010988 and 111321011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111321011093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838708 + ... + 962326.

It is an arithmetic number, because the mean of its divisors is an integer number (14152017600).

Almost surely, 2^111321011023 is an apocalyptic number.

111321011023 is a deficient number, since it is larger than the sum of its proper divisors (1895129777).

111321011023 is a wasteful number, since it uses less digits than its factorization.

111321011023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138941.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111321011023 its reverse (320110123111), we get a palindrome (431431134134).

The spelling of 111321011023 in words is "one hundred eleven billion, three hundred twenty-one million, eleven thousand, twenty-three".