111301311220 has 48 divisors (see below), whose sum is σ = 259792178688. Its totient is φ = 39709554560.

The previous prime is 111301311217. The next prime is 111301311293. The reversal of 111301311220 is 22113103111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 111301311194 and 111301311203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4761124 + ... + 4784443.

It is an arithmetic number, because the mean of its divisors is an integer number (5412337056).

Almost surely, 2^111301311220 is an apocalyptic number.

111301311220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111301311220 is an abundant number, since it is smaller than the sum of its proper divisors (148490867468).

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

111301311220 is a wasteful number, since it uses less digits than its factorization.

111301311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9545640 (or 9545638 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111301311220 its reverse (22113103111), we get a palindrome (133414414331).

The spelling of 111301311220 in words is "one hundred eleven billion, three hundred one million, three hundred eleven thousand, two hundred twenty".