1312202021300 has 18 divisors (see below), whose sum is σ = 2847478386438. Its totient is φ = 524880808480.

The previous prime is 1312202021293. The next prime is 1312202021303. The reversal of 1312202021300 is 31202022131.

It can be written as a sum of positive squares in 3 ways, for example, as 46896501136 + 1265305520164 = 216556^2 + 1124858^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312202021303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6561010007 + ... + 6561010206.

It is an arithmetic number, because the mean of its divisors is an integer number (158193243691).

Almost surely, 2^{1312202021300} is an apocalyptic number.

1312202021300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312202021300 is an abundant number, since it is smaller than the sum of its proper divisors (1535276365138).

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

1312202021300 is a wasteful number, since it uses less digits than its factorization.

1312202021300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13122020227 (or 13122020220 counting only the distinct ones).

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

Adding to 1312202021300 its reverse (31202022131), we get a palindrome (1343404043431).

The spelling of 1312202021300 in words is "one trillion, three hundred twelve billion, two hundred two million, twenty-one thousand, three hundred".