1312300221020 has 12 divisors (see below), whose sum is σ = 2755830464184. Its totient is φ = 524920088400.

The previous prime is 1312300221019. The next prime is 1312300221031. The reversal of 1312300221020 is 201220032131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312300221020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32807505506 + ... + 32807505545.

It is an arithmetic number, because the mean of its divisors is an integer number (229652538682).

Almost surely, 2^{1312300221020} is an apocalyptic number.

1312300221020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312300221020 is an abundant number, since it is smaller than the sum of its proper divisors (1443530243164).

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

1312300221020 is a wasteful number, since it uses less digits than its factorization.

1312300221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65615011060 (or 65615011058 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1312300221020 its reverse (201220032131), we get a palindrome (1513520253151).

The spelling of 1312300221020 in words is "one trillion, three hundred twelve billion, three hundred million, two hundred twenty-one thousand, twenty".