1103404212 has 18 divisors (see below), whose sum is σ = 2789160738. Its totient is φ = 367801392.

The previous prime is 1103404187. The next prime is 1103404219. The reversal of 1103404212 is 2124043011.

1103404212 is a `hidden beast` number, since 110 + 340 + 4 + 212 = 666.

It can be written as a sum of positive squares in only one way, i.e., 758782116 + 344622096 = 27546^2 + 18564^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103404219) 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 5 ways as a sum of consecutive naturals, for example, 15325023 + ... + 15325094.

Almost surely, 2^1103404212 is an apocalyptic number.

1103404212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1103404212 is an abundant number, since it is smaller than the sum of its proper divisors (1685756526).

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

1103404212 is a wasteful number, since it uses less digits than its factorization.

1103404212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30650127 (or 30650122 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1103404212 is about 33217.5286859212. The cubic root of 1103404212 is about 1033.3438977299.

Adding to 1103404212 its reverse (2124043011), we get a palindrome (3227447223).

The spelling of 1103404212 in words is "one billion, one hundred three million, four hundred four thousand, two hundred twelve".