113311221130220 has 96 divisors (see below), whose sum is σ = 248950119720960. Its totient is φ = 43271663086080.

The previous prime is 113311221130213. The next prime is 113311221130231. The reversal of 113311221130220 is 22031122113311.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22127039 + ... + 26762441.

It is an arithmetic number, because the mean of its divisors is an integer number (2593230413760).

Almost surely, 2^{113311221130220} is an apocalyptic number.

113311221130220 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 113311221130220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124475059860480).

113311221130220 is an abundant number, since it is smaller than the sum of its proper divisors (135638898590740).

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

113311221130220 is a wasteful number, since it uses less digits than its factorization.

113311221130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4635975 (or 4635973 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 113311221130220 its reverse (22031122113311), we get a palindrome (135342343243531).

The spelling of 113311221130220 in words is "one hundred thirteen trillion, three hundred eleven billion, two hundred twenty-one million, one hundred thirty thousand, two hundred twenty".