1310320333220 has 48 divisors (see below), whose sum is σ = 2992280039280. Its totient is φ = 479964708864.

The previous prime is 1310320333211. The next prime is 1310320333241. The reversal of 1310320333220 is 223330230131.

It can be written as a sum of positive squares in 8 ways, for example, as 4109066404 + 1306211266816 = 64102^2 + 1142896^2 .

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 15 ways as a sum of consecutive naturals, for example, 52066925 + ... + 52092084.

It is an arithmetic number, because the mean of its divisors is an integer number (62339167485).

Almost surely, 2^{1310320333220} is an apocalyptic number.

1310320333220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310320333220 is an abundant number, since it is smaller than the sum of its proper divisors (1681959706060).

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

1310320333220 is a wasteful number, since it uses less digits than its factorization.

1310320333220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104159072 (or 104159070 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1310320333220 its reverse (223330230131), we get a palindrome (1533650563351).

The spelling of 1310320333220 in words is "one trillion, three hundred ten billion, three hundred twenty million, three hundred thirty-three thousand, two hundred twenty".