1103421204 has 72 divisors (see below), whose sum is σ = 2947220640. Its totient is φ = 360850464.

The previous prime is 1103421197. The next prime is 1103421247. The reversal of 1103421204 is 4021243011.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40807 + ... + 62225.

It is an arithmetic number, because the mean of its divisors is an integer number (40933620).

Almost surely, 2^1103421204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103421204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1473610320).

1103421204 is an abundant number, since it is smaller than the sum of its proper divisors (1843799436).

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

1103421204 is a wasteful number, since it uses less digits than its factorization.

1103421204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21491 (or 21477 counting only the distinct ones).

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

The square root of 1103421204 is about 33217.7844535122. The cubic root of 1103421204 is about 1033.3492020687.

Adding to 1103421204 its reverse (4021243011), we get a palindrome (5124664215).

The spelling of 1103421204 in words is "one billion, one hundred three million, four hundred twenty-one thousand, two hundred four".