1003421123300 has 72 divisors (see below), whose sum is σ = 2190610870056. Its totient is φ = 398938946560.

The previous prime is 1003421123293. The next prime is 1003421123321. The reversal of 1003421123300 is 33211243001.

It can be written as a sum of positive squares in 12 ways, for example, as 460169576164 + 543251547136 = 678358^2 + 737056^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97860974 + ... + 97871226.

It is an arithmetic number, because the mean of its divisors is an integer number (30425150973).

Almost surely, 2^{1003421123300} is an apocalyptic number.

1003421123300 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 1003421123300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095305435028).

1003421123300 is an abundant number, since it is smaller than the sum of its proper divisors (1187189746756).

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

1003421123300 is a wasteful number, since it uses less digits than its factorization.

1003421123300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16097 (or 16090 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1003421123300 its reverse (33211243001), we get a palindrome (1036632366301).

The spelling of 1003421123300 in words is "one trillion, three billion, four hundred twenty-one million, one hundred twenty-three thousand, three hundred".