111211343112 has 32 divisors (see below), whose sum is σ = 285542640000. Its totient is φ = 36068543424.

The previous prime is 111211343093. The next prime is 111211343123. The reversal of 111211343112 is 211343112111.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62618112 + ... + 62619887.

It is an arithmetic number, because the mean of its divisors is an integer number (8923207500).

Almost surely, 2^111211343112 is an apocalyptic number.

111211343112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111211343112 is an abundant number, since it is smaller than the sum of its proper divisors (174331296888).

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

111211343112 is a wasteful number, since it uses less digits than its factorization.

111211343112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125238045 (or 125238041 counting only the distinct ones).

The product of its digits is 144, while the sum is 21.

Adding to 111211343112 its reverse (211343112111), we get a palindrome (322554455223).

The spelling of 111211343112 in words is "one hundred eleven billion, two hundred eleven million, three hundred forty-three thousand, one hundred twelve".