111203341220 has 24 divisors (see below), whose sum is σ = 235365817344. Its totient is φ = 44131088736.

The previous prime is 111203341199. The next prime is 111203341229. The reversal of 111203341220 is 22143302111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111203341192 and 111203341201.

It is not an unprimeable number, because it can be changed into a prime (111203341229) 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, 21887882 + ... + 21892961.

It is an arithmetic number, because the mean of its divisors is an integer number (9806909056).

Almost surely, 2^111203341220 is an apocalyptic number.

111203341220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111203341220 is an abundant number, since it is smaller than the sum of its proper divisors (124162476124).

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

111203341220 is a wasteful number, since it uses less digits than its factorization.

111203341220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43780979 (or 43780977 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111203341220 its reverse (22143302111), we get a palindrome (133346643331).

The spelling of 111203341220 in words is "one hundred eleven billion, two hundred three million, three hundred forty-one thousand, two hundred twenty".