1003203420320 has 24 divisors (see below), whose sum is σ = 2370068080884. Its totient is φ = 401281368064.

The previous prime is 1003203420293. The next prime is 1003203420449. The reversal of 1003203420320 is 230243023001.

It can be written as a sum of positive squares in 2 ways, for example, as 984246536464 + 18956883856 = 992092^2 + 137684^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1003203420292 and 1003203420301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3135010529 + ... + 3135010848.

Almost surely, 2^{1003203420320} is an apocalyptic number.

1003203420320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003203420320 is an abundant number, since it is smaller than the sum of its proper divisors (1366864660564).

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

1003203420320 is an equidigital number, since it uses as much as digits as its factorization.

1003203420320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270021392 (or 6270021384 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 1003203420320 its reverse (230243023001), we get a palindrome (1233446443321).

The spelling of 1003203420320 in words is "one trillion, three billion, two hundred three million, four hundred twenty thousand, three hundred twenty".