1103321400 has 48 divisors (see below), whose sum is σ = 3420298200. Its totient is φ = 294218880.

The previous prime is 1103321399. The next prime is 1103321411. The reversal of 1103321400 is 41233011.

It is a super-2 number, since 2×1103321400² = 2434636223395920000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1103321400.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 918835 + ... + 920034.

Almost surely, 2^1103321400 is an apocalyptic number.

1103321400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1103321400 is an abundant number, since it is smaller than the sum of its proper divisors (2316976800).

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

1103321400 is a wasteful number, since it uses less digits than its factorization.

1103321400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838888 (or 1838879 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1103321400 is about 33216.2821519808. The cubic root of 1103321400 is about 1033.3180457907.

Adding to 1103321400 its reverse (41233011), we get a palindrome (1144554411).

The spelling of 1103321400 in words is "one billion, one hundred three million, three hundred twenty-one thousand, four hundred".