111434311212 has 96 divisors (see below), whose sum is σ = 315895534080. Its totient is φ = 29863987200.

The previous prime is 111434311181. The next prime is 111434311223. The reversal of 111434311212 is 212113434111.

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 31 ways as a sum of consecutive naturals, for example, 184453 + ... + 506844.

It is an arithmetic number, because the mean of its divisors is an integer number (3290578480).

Almost surely, 2^111434311212 is an apocalyptic number.

111434311212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111434311212 is an abundant number, since it is smaller than the sum of its proper divisors (204461222868).

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

111434311212 is a wasteful number, since it uses less digits than its factorization.

111434311212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691431 (or 691429 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

Adding to 111434311212 its reverse (212113434111), we get a palindrome (323547745323).

The spelling of 111434311212 in words is "one hundred eleven billion, four hundred thirty-four million, three hundred eleven thousand, two hundred twelve".