1103431205 has 32 divisors (see below), whose sum is σ = 1412855808. Its totient is φ = 825811200.

The previous prime is 1103431193. The next prime is 1103431243. The reversal of 1103431205 is 5021343011.

It is not a de Polignac number, because 1103431205 - 2⁸ = 1103430949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1037504 + ... + 1038566.

It is an arithmetic number, because the mean of its divisors is an integer number (44151744).

Almost surely, 2^1103431205 is an apocalyptic number.

It is an amenable number.

1103431205 is a deficient number, since it is larger than the sum of its proper divisors (309424603).

1103431205 is a wasteful number, since it uses less digits than its factorization.

1103431205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1103431205 is about 33217.9349900020. The cubic root of 1103431205 is about 1033.3523240237.

Adding to 1103431205 its reverse (5021343011), we get a palindrome (6124774216).

The spelling of 1103431205 in words is "one billion, one hundred three million, four hundred thirty-one thousand, two hundred five".