111143501300 has 72 divisors (see below), whose sum is σ = 259900912152. Its totient is φ = 41011200000.

The previous prime is 111143501171. The next prime is 111143501333. The reversal of 111143501300 is 3105341111.

It can be written as a sum of positive squares in 12 ways, for example, as 28977571984 + 82165929316 = 170228^2 + 286646^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2054600 + ... + 2108000.

It is an arithmetic number, because the mean of its divisors is an integer number (3609734891).

Almost surely, 2^111143501300 is an apocalyptic number.

111143501300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111143501300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129950456076).

111143501300 is an abundant number, since it is smaller than the sum of its proper divisors (148757410852).

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

111143501300 is a wasteful number, since it uses less digits than its factorization.

111143501300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55029 (or 55022 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 111143501300 its reverse (3105341111), we get a palindrome (114248842411).

The spelling of 111143501300 in words is "one hundred eleven billion, one hundred forty-three million, five hundred one thousand, three hundred".