1303311220320 has 48 divisors (see below), whose sum is σ = 4105430345520. Its totient is φ = 347549658624.

The previous prime is 1303311220319. The next prime is 1303311220381. The reversal of 1303311220320 is 230221133031.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1357615375 + ... + 1357616334.

It is an arithmetic number, because the mean of its divisors is an integer number (85529798865).

Almost surely, 2^{1303311220320} is an apocalyptic number.

1303311220320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303311220320 is an abundant number, since it is smaller than the sum of its proper divisors (2802119125200).

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

1303311220320 is a wasteful number, since it uses less digits than its factorization.

1303311220320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715231727 (or 2715231719 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1303311220320 its reverse (230221133031), we get a palindrome (1533532353351).

The spelling of 1303311220320 in words is "one trillion, three hundred three billion, three hundred eleven million, two hundred twenty thousand, three hundred twenty".