111103110321 has 32 divisors (see below), whose sum is σ = 169703559168. Its totient is φ = 63336349440.

The previous prime is 111103110317. The next prime is 111103110341. The reversal of 111103110321 is 123011301111.

It is not a de Polignac number, because 111103110321 - 2² = 111103110317 is a prime.

It is a super-2 number, since 2×111103110321² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111103110321.

It is not an unprimeable number, because it can be changed into a prime (111103110341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16889385 + ... + 16895961.

It is an arithmetic number, because the mean of its divisors is an integer number (5303236224).

Almost surely, 2^111103110321 is an apocalyptic number.

It is an amenable number.

111103110321 is a deficient number, since it is larger than the sum of its proper divisors (58600448847).

111103110321 is an equidigital number, since it uses as much as digits as its factorization.

111103110321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8381.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 111103110321 its reverse (123011301111), we get a palindrome (234114411432).

The spelling of 111103110321 in words is "one hundred eleven billion, one hundred three million, one hundred ten thousand, three hundred twenty-one".