111042311212 has 12 divisors (see below), whose sum is σ = 222084622480. Its totient is φ = 47589561936.

The previous prime is 111042311167. The next prime is 111042311213. The reversal of 111042311212 is 212113240111.

111042311212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 111042311212.

It is not an unprimeable number, because it can be changed into a prime (111042311213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1982898387 + ... + 1982898442.

Almost surely, 2^111042311212 is an apocalyptic number.

It is an amenable number.

111042311212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

111042311212 is a wasteful number, since it uses less digits than its factorization.

111042311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3965796840 (or 3965796838 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 111042311212 its reverse (212113240111), we get a palindrome (323155551323).

The spelling of 111042311212 in words is "one hundred eleven billion, forty-two million, three hundred eleven thousand, two hundred twelve".