1103103220 has 24 divisors (see below), whose sum is σ = 2339011584. Its totient is φ = 436956576.

The previous prime is 1103103203. The next prime is 1103103223. The reversal of 1103103220 is 223013011.

1103103220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1103103220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103103223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265684 + ... + 269803.

It is an arithmetic number, because the mean of its divisors is an integer number (97458816).

Almost surely, 2^1103103220 is an apocalyptic number.

1103103220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103103220 is an abundant number, since it is smaller than the sum of its proper divisors (1235908364).

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

1103103220 is a wasteful number, since it uses less digits than its factorization.

1103103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535599 (or 535597 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1103103220 is about 33212.9977569023. The cubic root of 1103103220 is about 1033.2499289834.

Adding to 1103103220 its reverse (223013011), we get a palindrome (1326116231).

The spelling of 1103103220 in words is "one billion, one hundred three million, one hundred three thousand, two hundred twenty".