1113144441220 has 192 divisors, whose sum is σ = 2767530737664. Its totient is φ = 368167403520.

The previous prime is 1113144441193. The next prime is 1113144441287. The reversal of 1113144441220 is 221444413111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 231084252 + ... + 231089068.

It is an arithmetic number, because the mean of its divisors is an integer number (14414222592).

Almost surely, 2^{1113144441220} is an apocalyptic number.

1113144441220 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 1113144441220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1383765368832).

1113144441220 is an abundant number, since it is smaller than the sum of its proper divisors (1654386296444).

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

1113144441220 is a wasteful number, since it uses less digits than its factorization.

1113144441220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318 (or 5316 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 1113144441220 its reverse (221444413111), we get a palindrome (1334588854331).

The spelling of 1113144441220 in words is "one trillion, one hundred thirteen billion, one hundred forty-four million, four hundred forty-one thousand, two hundred twenty".