111345123504 has 40 divisors (see below), whose sum is σ = 288908740800. Its totient is φ = 36951535168.

The previous prime is 111345123503. The next prime is 111345123509. The reversal of 111345123504 is 405321543111.

It is not an unprimeable number, because it can be changed into a prime (111345123503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5098554 + ... + 5120345.

It is an arithmetic number, because the mean of its divisors is an integer number (7222718520).

Almost surely, 2^111345123504 is an apocalyptic number.

It is an amenable number.

111345123504 is an abundant number, since it is smaller than the sum of its proper divisors (177563617296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111345123504 is a wasteful number, since it uses less digits than its factorization.

111345123504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10219137 (or 10219131 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 111345123504 its reverse (405321543111), we get a palindrome (516666666615).

The spelling of 111345123504 in words is "one hundred eleven billion, three hundred forty-five million, one hundred twenty-three thousand, five hundred four".