1111431112 has 16 divisors (see below), whose sum is σ = 2273382000. Its totient is φ = 505195920.

The previous prime is 1111431109. The next prime is 1111431131. The reversal of 1111431112 is 2111341111.

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, 6314862 + ... + 6315037.

It is an arithmetic number, because the mean of its divisors is an integer number (142086375).

Almost surely, 2^1111431112 is an apocalyptic number.

It is an amenable number.

1111431112 is an abundant number, since it is smaller than the sum of its proper divisors (1161950888).

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

1111431112 is a wasteful number, since it uses less digits than its factorization.

1111431112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12629916 (or 12629912 counting only the distinct ones).

The product of its digits is 24, while the sum is 16.

The square root of 1111431112 is about 33338.1330011145. The cubic root of 1111431112 is about 1035.8435908237.

Adding to 1111431112 its reverse (2111341111), we get a palindrome (3222772223).

Subtracting 1111431112 from its reverse (2111341111), we obtain a palindrome (999909999).

The spelling of 1111431112 in words is "one billion, one hundred eleven million, four hundred thirty-one thousand, one hundred twelve".