1103203200 has 384 divisors, whose sum is σ = 4104023040. Its totient is φ = 258048000.

The previous prime is 1103203193. The next prime is 1103203201. The reversal of 1103203200 is 23023011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103203201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3273432 + ... + 3273768.

It is an arithmetic number, because the mean of its divisors is an integer number (10687560).

Almost surely, 2^1103203200 is an apocalyptic number.

1103203200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103203200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2052011520).

1103203200 is an abundant number, since it is smaller than the sum of its proper divisors (3000819840).

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

1103203200 is a wasteful number, since it uses less digits than its factorization.

1103203200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1103203200 is about 33214.5028564331. The cubic root of 1103203200 is about 1033.2811443176.

Adding to 1103203200 its reverse (23023011), we get a palindrome (1126226211).

The spelling of 1103203200 in words is "one billion, one hundred three million, two hundred three thousand, two hundred".