1103113012 has 6 divisors (see below), whose sum is σ = 1930447778. Its totient is φ = 551556504.

The previous prime is 1103112977. The next prime is 1103113019. The reversal of 1103113012 is 2103113011.

It can be written as a sum of positive squares in only one way, i.e., 1035938596 + 67174416 = 32186^2 + 8196^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1103112983 and 1103113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103113019) 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 as a sum of consecutive naturals, namely, 137889123 + ... + 137889130.

Almost surely, 2^1103113012 is an apocalyptic number.

It is an amenable number.

1103113012 is a deficient number, since it is larger than the sum of its proper divisors (827334766).

1103113012 is a wasteful number, since it uses less digits than its factorization.

1103113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275778257 (or 275778255 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1103113012 is about 33213.1451687431. The cubic root of 1103113012 is about 1033.2529862837.

Adding to 1103113012 its reverse (2103113011), we get a palindrome (3206226023).

Subtracting 1103113012 from its reverse (2103113011), we obtain a palindrome (999999999).

The spelling of 1103113012 in words is "one billion, one hundred three million, one hundred thirteen thousand, twelve".