111213112320 has 176 divisors, whose sum is σ = 395231812320. Its totient is φ = 29656793088.

The previous prime is 111213112301. The next prime is 111213112321. The reversal of 111213112320 is 23211312111.

111213112320 is a `hidden beast` number, since 1 + 1 + 121 + 311 + 232 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 111213112293 and 111213112302.

It is not an unprimeable number, because it can be changed into a prime (111213112321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 264007 + ... + 540486.

Almost surely, 2^111213112320 is an apocalyptic number.

111213112320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111213112320 is an abundant number, since it is smaller than the sum of its proper divisors (284018700000).

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

111213112320 is an equidigital number, since it uses as much as digits as its factorization.

111213112320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804527 (or 804503 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 111213112320 its reverse (23211312111), we get a palindrome (134424424431).

The spelling of 111213112320 in words is "one hundred eleven billion, two hundred thirteen million, one hundred twelve thousand, three hundred twenty".