111223313020 has 36 divisors (see below), whose sum is σ = 246509081784. Its totient is φ = 42147779040.

The previous prime is 111223312961. The next prime is 111223313029. The reversal of 111223313020 is 20313322111.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223313029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7695226 + ... + 7709665.

It is an arithmetic number, because the mean of its divisors is an integer number (6847474494).

Almost surely, 2^111223313020 is an apocalyptic number.

111223313020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111223313020 is an abundant number, since it is smaller than the sum of its proper divisors (135285768764).

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

111223313020 is a wasteful number, since it uses less digits than its factorization.

111223313020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15404938 (or 15404917 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111223313020 its reverse (20313322111), we get a palindrome (131536635131).

Subtracting from 111223313020 its reverse (20313322111), we obtain a palindrome (90909990909).

The spelling of 111223313020 in words is "one hundred eleven billion, two hundred twenty-three million, three hundred thirteen thousand, twenty".