111213030144 has 72 divisors (see below), whose sum is σ = 311567247040. Its totient is φ = 35119899648.

The previous prime is 111213030143. The next prime is 111213030259. The reversal of 111213030144 is 441030312111.

It is a self number, because there is not a number n which added to its sum of digits gives 111213030144.

It is not an unprimeable number, because it can be changed into a prime (111213030143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3796162 + ... + 3825345.

Almost surely, 2^111213030144 is an apocalyptic number.

It is an amenable number.

111213030144 is an abundant number, since it is smaller than the sum of its proper divisors (200354216896).

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

111213030144 is an equidigital number, since it uses as much as digits as its factorization.

111213030144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7621545 (or 7621531 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111213030144 its reverse (441030312111), we get a palindrome (552243342255).

The spelling of 111213030144 in words is "one hundred eleven billion, two hundred thirteen million, thirty thousand, one hundred forty-four".