111213312320 has 56 divisors (see below), whose sum is σ = 288901863648. Its totient is φ = 40441203200.

The previous prime is 111213312319. The next prime is 111213312323. The reversal of 111213312320 is 23213312111.

It is a happy number.

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 = 111213312292 and 111213312301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111213312323) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 15793826 + ... + 15800865.

Almost surely, 2^111213312320 is an apocalyptic number.

111213312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111213312320 is an abundant number, since it is smaller than the sum of its proper divisors (177688551328).

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

111213312320 is a wasteful number, since it uses less digits than its factorization.

111213312320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31594719 (or 31594709 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 111213312320 its reverse (23213312111), we get a palindrome (134426624431).

The spelling of 111213312320 in words is "one hundred eleven billion, two hundred thirteen million, three hundred twelve thousand, three hundred twenty".