1303203113440 has 48 divisors (see below), whose sum is σ = 3079157917248. Its totient is φ = 521223584256.

The previous prime is 1303203113411. The next prime is 1303203113447. The reversal of 1303203113440 is 443113023031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303203113447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015369 + ... + 1907191.

It is an arithmetic number, because the mean of its divisors is an integer number (64149123276).

Almost surely, 2^{1303203113440} is an apocalyptic number.

1303203113440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303203113440 is an abundant number, since it is smaller than the sum of its proper divisors (1775954803808).

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

1303203113440 is an equidigital number, since it uses as much as digits as its factorization.

1303203113440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900971 (or 900963 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1303203113440 its reverse (443113023031), we get a palindrome (1746316136471).

The spelling of 1303203113440 in words is "one trillion, three hundred three billion, two hundred three million, one hundred thirteen thousand, four hundred forty".