1103431112 has 32 divisors (see below), whose sum is σ = 2440773120. Its totient is φ = 457643520.

The previous prime is 1103431103. The next prime is 1103431117. The reversal of 1103431112 is 2111343011.

It is not an unprimeable number, because it can be changed into a prime (1103431117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316073 + ... + 319544.

It is an arithmetic number, because the mean of its divisors is an integer number (76274160).

Almost surely, 2^1103431112 is an apocalyptic number.

It is an amenable number.

1103431112 is an abundant number, since it is smaller than the sum of its proper divisors (1337342008).

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

1103431112 is a wasteful number, since it uses less digits than its factorization.

1103431112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635661 (or 635657 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1103431112 is about 33217.9335901558. The cubic root of 1103431112 is about 1033.3522949926.

Adding to 1103431112 its reverse (2111343011), we get a palindrome (3214774123).

The spelling of 1103431112 in words is "one billion, one hundred three million, four hundred thirty-one thousand, one hundred twelve".