1303320543240 has 64 divisors (see below), whose sum is σ = 3910170288960. Its totient is φ = 347533597440.

The previous prime is 1303320543233. The next prime is 1303320543257. The reversal of 1303320543240 is 423450233031.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1303320543198 and 1303320543207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2046330 + ... + 2606550.

It is an arithmetic number, because the mean of its divisors is an integer number (61096410765).

Almost surely, 2^{1303320543240} is an apocalyptic number.

1303320543240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303320543240 is an abundant number, since it is smaller than the sum of its proper divisors (2606849745720).

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

1303320543240 is a wasteful number, since it uses less digits than its factorization.

1303320543240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579622 (or 579618 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 1303320543240 its reverse (423450233031), we get a palindrome (1726770776271).

The spelling of 1303320543240 in words is "one trillion, three hundred three billion, three hundred twenty million, five hundred forty-three thousand, two hundred forty".