111213320020 has 48 divisors (see below), whose sum is σ = 265856992128. Its totient is φ = 38682892160.

The previous prime is 111213320011. The next prime is 111213320021. The reversal of 111213320020 is 20023312111.

It is a super-3 number, since 3×111213320020³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111213319976 and 111213320003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213320021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10984399 + ... + 10994518.

It is an arithmetic number, because the mean of its divisors is an integer number (5538687336).

Almost surely, 2^111213320020 is an apocalyptic number.

111213320020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111213320020 is an abundant number, since it is smaller than the sum of its proper divisors (154643672108).

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

111213320020 is a wasteful number, since it uses less digits than its factorization.

111213320020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21978960 (or 21978958 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 111213320020 its reverse (20023312111), we get a palindrome (131236632131).

The spelling of 111213320020 in words is "one hundred eleven billion, two hundred thirteen million, three hundred twenty thousand, twenty".