111032320123 has 4 divisors (see below), whose sum is σ = 111073799200. Its totient is φ = 110990841048.

The previous prime is 111032320121. The next prime is 111032320171. The reversal of 111032320123 is 321023230111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111032320123 - 2¹ = 111032320121 is a prime.

It is a super-2 number, since 2×111032320123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111032320123.

It is not an unprimeable number, because it can be changed into a prime (111032320121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20735523 + ... + 20740876.

It is an arithmetic number, because the mean of its divisors is an integer number (27768449800).

Almost surely, 2^111032320123 is an apocalyptic number.

111032320123 is a deficient number, since it is larger than the sum of its proper divisors (41479077).

111032320123 is an equidigital number, since it uses as much as digits as its factorization.

111032320123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41479076.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111032320123 its reverse (321023230111), we get a palindrome (432055550234).

The spelling of 111032320123 in words is "one hundred eleven billion, thirty-two million, three hundred twenty thousand, one hundred twenty-three".