1312320112202 has 72 divisors (see below), whose sum is σ = 2236123040004. Its totient is φ = 576982806400.

The previous prime is 1312320112199. The next prime is 1312320112241. The reversal of 1312320112202 is 2022110232131.

It can be written as a sum of positive squares in 2 ways, for example, as 1298412391441 + 13907720761 = 1139479^2 + 117931^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 64645718 + ... + 64666014.

Almost surely, 2^{1312320112202} is an apocalyptic number.

1312320112202 is a deficient number, since it is larger than the sum of its proper divisors (923802927802).

1312320112202 is a wasteful number, since it uses less digits than its factorization.

1312320112202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20516 (or 20434 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1312320112202 its reverse (2022110232131), we get a palindrome (3334430344333).

The spelling of 1312320112202 in words is "one trillion, three hundred twelve billion, three hundred twenty million, one hundred twelve thousand, two hundred two".