111354420112 has 20 divisors (see below), whose sum is σ = 232345280860. Its totient is φ = 51394347648.

The previous prime is 111354420109. The next prime is 111354420143. The reversal of 111354420112 is 211024453111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12333435136 + 99020984976 = 111056^2 + 314676^2 .

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, 267678687 + ... + 267679102.

It is an arithmetic number, because the mean of its divisors is an integer number (11617264043).

Almost surely, 2^111354420112 is an apocalyptic number.

It is an amenable number.

111354420112 is an abundant number, since it is smaller than the sum of its proper divisors (120990860748).

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

111354420112 is a wasteful number, since it uses less digits than its factorization.

111354420112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535357810 (or 535357804 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 111354420112 its reverse (211024453111), we get a palindrome (322378873223).

The spelling of 111354420112 in words is "one hundred eleven billion, three hundred fifty-four million, four hundred twenty thousand, one hundred twelve".