1003123200 has 240 divisors, whose sum is σ = 3354981696. Its totient is φ = 264192000.

The previous prime is 1003123157. The next prime is 1003123201. The reversal of 1003123200 is 23213001.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is not an unprimeable number, because it can be changed into a prime (1003123201) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 5798314 + ... + 5798486.

Almost surely, 2^1003123200 is an apocalyptic number.

1003123200 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 1003123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677490848).

1003123200 is an abundant number, since it is smaller than the sum of its proper divisors (2351858496).

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

1003123200 is a wasteful number, since it uses less digits than its factorization.

1003123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 334 counting only the distinct ones).

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

The square root of 1003123200 is about 31672.1202321537. The cubic root of 1003123200 is about 1001.0399847235.

Adding to 1003123200 its reverse (23213001), we get a palindrome (1026336201).

The spelling of 1003123200 in words is "one billion, three million, one hundred twenty-three thousand, two hundred".