111321321112 has 16 divisors (see below), whose sum is σ = 208769523840. Its totient is φ = 55649448096.

The previous prime is 111321321107. The next prime is 111321321121. The reversal of 111321321112 is 211123123111.

It is a self number, because there is not a number n which added to its sum of digits gives 111321321112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1359288 + ... + 1438855.

It is an arithmetic number, because the mean of its divisors is an integer number (13048095240).

Almost surely, 2^111321321112 is an apocalyptic number.

It is an amenable number.

111321321112 is a deficient number, since it is larger than the sum of its proper divisors (97448202728).

111321321112 is a wasteful number, since it uses less digits than its factorization.

111321321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2803122 (or 2803118 counting only the distinct ones).

The product of its digits is 72, while the sum is 19.

Adding to 111321321112 its reverse (211123123111), we get a palindrome (322444444223).

The spelling of 111321321112 in words is "one hundred eleven billion, three hundred twenty-one million, three hundred twenty-one thousand, one hundred twelve".