1103443012 has 24 divisors (see below), whose sum is σ = 2323039040. Its totient is φ = 448014240.

The previous prime is 1103442983. The next prime is 1103443013. The reversal of 1103443012 is 2103443011.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1103443013) 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, 1036539 + ... + 1037602.

Almost surely, 2^1103443012 is an apocalyptic number.

It is an amenable number.

1103443012 is an abundant number, since it is smaller than the sum of its proper divisors (1219596028).

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

1103443012 is a wasteful number, since it uses less digits than its factorization.

1103443012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074171 (or 2074169 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1103443012 is about 33218.1127097853. The cubic root of 1103443012 is about 1033.3560097232.

Adding to 1103443012 its reverse (2103443011), we get a palindrome (3206886023).

Subtracting 1103443012 from its reverse (2103443011), we obtain a palindrome (999999999).

The spelling of 1103443012 in words is "one billion, one hundred three million, four hundred forty-three thousand, twelve".