1103431100 has 36 divisors (see below), whose sum is σ = 2399315184. Its totient is φ = 440474880.

The previous prime is 1103431037. The next prime is 1103431103. The reversal of 1103431100 is 11343011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103431103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39332 + ... + 61268.

It is an arithmetic number, because the mean of its divisors is an integer number (66647644).

Almost surely, 2^1103431100 is an apocalyptic number.

1103431100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103431100 is an abundant number, since it is smaller than the sum of its proper divisors (1295884084).

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

1103431100 is a wasteful number, since it uses less digits than its factorization.

1103431100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22454 (or 22447 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1103431100 is about 33217.9334095305. The cubic root of 1103431100 is about 1033.3522912466.

Adding to 1103431100 its reverse (11343011), we get a palindrome (1114774111).

The spelling of 1103431100 in words is "one billion, one hundred three million, four hundred thirty-one thousand, one hundred".