1103616012 has 12 divisors (see below), whose sum is σ = 2575104056. Its totient is φ = 367872000.

The previous prime is 1103615987. The next prime is 1103616029. The reversal of 1103616012 is 2106163011.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 1103616012.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 45983989 + ... + 45984012.

Almost surely, 2^1103616012 is an apocalyptic number.

1103616012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103616012 is an abundant number, since it is smaller than the sum of its proper divisors (1471488044).

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

1103616012 is a wasteful number, since it uses less digits than its factorization.

1103616012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91968008 (or 91968006 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1103616012 is about 33220.7166087669. The cubic root of 1103616012 is about 1033.4100107744.

Adding to 1103616012 its reverse (2106163011), we get a palindrome (3209779023).

The spelling of 1103616012 in words is "one billion, one hundred three million, six hundred sixteen thousand, twelve".