111102145440 has 384 divisors, whose sum is σ = 435345829632. Its totient is φ = 23399301120.

The previous prime is 111102145439. The next prime is 111102145501. The reversal of 111102145440 is 44541201111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 111102145440.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1119274 + ... + 1214486.

It is an arithmetic number, because the mean of its divisors is an integer number (1133713098).

Almost surely, 2^111102145440 is an apocalyptic number.

111102145440 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 111102145440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217672914816).

111102145440 is an abundant number, since it is smaller than the sum of its proper divisors (324243684192).

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

111102145440 is a wasteful number, since it uses less digits than its factorization.

111102145440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95272 (or 95264 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

Adding to 111102145440 its reverse (44541201111), we get a palindrome (155643346551).

The spelling of 111102145440 in words is "one hundred eleven billion, one hundred two million, one hundred forty-five thousand, four hundred forty".