111513443106 has 64 divisors (see below), whose sum is σ = 242188224768. Its totient is φ = 34025868288.

The previous prime is 111513443101. The next prime is 111513443113. The reversal of 111513443106 is 601344315111.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111513443101) 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 31 ways as a sum of consecutive naturals, for example, 11354310 + ... + 11364126.

It is an arithmetic number, because the mean of its divisors is an integer number (3784191012).

Almost surely, 2^111513443106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111513443106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121094112384).

111513443106 is an abundant number, since it is smaller than the sum of its proper divisors (130674781662).

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

111513443106 is a wasteful number, since it uses less digits than its factorization.

111513443106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11035.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 111513443106 its reverse (601344315111), we get a palindrome (712857758217).

The spelling of 111513443106 in words is "one hundred eleven billion, five hundred thirteen million, four hundred forty-three thousand, one hundred six".