111444423211 has 12 divisors (see below), whose sum is σ = 124572987000. Its totient is φ = 99595934240.

The previous prime is 111444423193. The next prime is 111444423247. The reversal of 111444423211 is 112324444111.

It is a happy number.

It is not a de Polignac number, because 111444423211 - 2⁹ = 111444422699 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111444423211.

It is not an unprimeable number, because it can be changed into a prime (111444423011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7798186 + ... + 7812463.

It is an arithmetic number, because the mean of its divisors is an integer number (10381082250).

Almost surely, 2^111444423211 is an apocalyptic number.

111444423211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111444423211 is a deficient number, since it is larger than the sum of its proper divisors (13128563789).

111444423211 is a wasteful number, since it uses less digits than its factorization.

111444423211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15610730 (or 15610719 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

Adding to 111444423211 its reverse (112324444111), we get a palindrome (223768867322).

The spelling of 111444423211 in words is "one hundred eleven billion, four hundred forty-four million, four hundred twenty-three thousand, two hundred eleven".