111213130312 has 32 divisors (see below), whose sum is σ = 227068560000. Its totient is φ = 50863353408.

The previous prime is 111213130291. The next prime is 111213130319. The reversal of 111213130312 is 213031312111.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 111213130312.

It is not an unprimeable number, because it can be changed into a prime (111213130319) 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, 12610512 + ... + 12619327.

It is an arithmetic number, because the mean of its divisors is an integer number (7095892500).

Almost surely, 2^111213130312 is an apocalyptic number.

It is an amenable number.

111213130312 is an abundant number, since it is smaller than the sum of its proper divisors (115855429688).

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

111213130312 is a wasteful number, since it uses less digits than its factorization.

111213130312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25229893 (or 25229889 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111213130312 its reverse (213031312111), we get a palindrome (324244442423).

The spelling of 111213130312 in words is "one hundred eleven billion, two hundred thirteen million, one hundred thirty thousand, three hundred twelve".