111203345220 has 288 divisors, whose sum is σ = 348950246400. Its totient is φ = 26237376000.

The previous prime is 111203345213. The next prime is 111203345237. The reversal of 111203345220 is 22543302111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 558810681 + ... + 558810879.

It is an arithmetic number, because the mean of its divisors is an integer number (1211632800).

Almost surely, 2^111203345220 is an apocalyptic number.

111203345220 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 111203345220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174475123200).

111203345220 is an abundant number, since it is smaller than the sum of its proper divisors (237746901180).

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

111203345220 is a wasteful number, since it uses less digits than its factorization.

111203345220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 111203345220 its reverse (22543302111), we get a palindrome (133746647331).

The spelling of 111203345220 in words is "one hundred eleven billion, two hundred three million, three hundred forty-five thousand, two hundred twenty".