1103601800 has 48 divisors (see below), whose sum is σ = 2932431360. Its totient is φ = 378377280.

The previous prime is 1103601761. The next prime is 1103601803. The reversal of 1103601800 is 81063011.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (1103601803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392744 + ... + 395543.

It is an arithmetic number, because the mean of its divisors is an integer number (61092320).

Almost surely, 2^1103601800 is an apocalyptic number.

1103601800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103601800 is an abundant number, since it is smaller than the sum of its proper divisors (1828829560).

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

1103601800 is a wasteful number, since it uses less digits than its factorization.

1103601800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 788310 (or 788301 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 1103601800 is about 33220.5027054077. The cubic root of 1103601800 is about 1033.4055747852.

Adding to 1103601800 its reverse (81063011), we get a palindrome (1184664811).

The spelling of 1103601800 in words is "one billion, one hundred three million, six hundred one thousand, eight hundred".