1310350321220 has 96 divisors (see below), whose sum is σ = 3095088796800. Its totient is φ = 463056943104.

The previous prime is 1310350321187. The next prime is 1310350321283. The reversal of 1310350321220 is 221230530131.

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 31 ways as a sum of consecutive naturals, for example, 226322 + ... + 1634601.

It is an arithmetic number, because the mean of its divisors is an integer number (32240508300).

Almost surely, 2^{1310350321220} is an apocalyptic number.

1310350321220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310350321220 is an abundant number, since it is smaller than the sum of its proper divisors (1784738475580).

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

1310350321220 is a wasteful number, since it uses less digits than its factorization.

1310350321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1861077 (or 1861075 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 1310350321220 its reverse (221230530131), we get a palindrome (1531580851351).

The spelling of 1310350321220 in words is "one trillion, three hundred ten billion, three hundred fifty million, three hundred twenty-one thousand, two hundred twenty".