111331312320 has 112 divisors (see below), whose sum is σ = 368845551360. Its totient is φ = 28397546496.

The previous prime is 111331312289. The next prime is 111331312331. The reversal of 111331312320 is 23213133111.

It is a happy number.

It is a super-2 number, since 2×111331312320² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2499010 + ... + 2543169.

Almost surely, 2^111331312320 is an apocalyptic number.

111331312320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111331312320 is an abundant number, since it is smaller than the sum of its proper divisors (257514239040).

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

111331312320 is a wasteful number, since it uses less digits than its factorization.

111331312320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5042222 (or 5042212 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 111331312320 its reverse (23213133111), we get a palindrome (134544445431).

The spelling of 111331312320 in words is "one hundred eleven billion, three hundred thirty-one million, three hundred twelve thousand, three hundred twenty".