111530502006 has 144 divisors (see below), whose sum is σ = 286418064240. Its totient is φ = 28846540800.

The previous prime is 111530502001. The next prime is 111530502019. The reversal of 111530502006 is 600205035111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111530502001) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 8566830 + ... + 8579838.

It is an arithmetic number, because the mean of its divisors is an integer number (1989014335).

Almost surely, 2^111530502006 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111530502006, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143209032120).

111530502006 is an abundant number, since it is smaller than the sum of its proper divisors (174887562234).

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

111530502006 is a wasteful number, since it uses less digits than its factorization.

111530502006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13291 (or 13273 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 111530502006 its reverse (600205035111), we get a palindrome (711735537117).

The spelling of 111530502006 in words is "one hundred eleven billion, five hundred thirty million, five hundred two thousand, six".