111230011312 has 80 divisors (see below), whose sum is σ = 251392481280. Its totient is φ = 46693430784.

The previous prime is 111230011309. The next prime is 111230011339. The reversal of 111230011312 is 213110032111.

It is a happy number.

It is a super-2 number, since 2×111230011312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 1014433 + ... + 1118719.

It is an arithmetic number, because the mean of its divisors is an integer number (3142406016).

Almost surely, 2^111230011312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111230011312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125696240640).

111230011312 is an abundant number, since it is smaller than the sum of its proper divisors (140162469968).

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

111230011312 is a wasteful number, since it uses less digits than its factorization.

111230011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104498 (or 104492 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111230011312 its reverse (213110032111), we get a palindrome (324340043423).

The spelling of 111230011312 in words is "one hundred eleven billion, two hundred thirty million, eleven thousand, three hundred twelve".