1312221103320 has 32 divisors (see below), whose sum is σ = 3936663310320. Its totient is φ = 349925627520.

The previous prime is 1312221103309. The next prime is 1312221103367. The reversal of 1312221103320 is 233011222131.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5467587811 + ... + 5467588050.

Almost surely, 2^{1312221103320} is an apocalyptic number.

1312221103320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312221103320 is an abundant number, since it is smaller than the sum of its proper divisors (2624442207000).

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

1312221103320 is a wasteful number, since it uses less digits than its factorization.

1312221103320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10935175875 (or 10935175871 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1312221103320 its reverse (233011222131), we get a palindrome (1545232325451).

The spelling of 1312221103320 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, one hundred three thousand, three hundred twenty".