1312311302212 has 12 divisors (see below), whose sum is σ = 2370626868736. Its totient is φ = 634989339720.

The previous prime is 1312311302161. The next prime is 1312311302213. The reversal of 1312311302212 is 2122031132131.

It is not an unprimeable number, because it can be changed into a prime (1312311302213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5291577708 + ... + 5291577955.

Almost surely, 2^{1312311302212} is an apocalyptic number.

It is an amenable number.

1312311302212 is a deficient number, since it is larger than the sum of its proper divisors (1058315566524).

1312311302212 is a wasteful number, since it uses less digits than its factorization.

1312311302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10583155698 (or 10583155696 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1312311302212 its reverse (2122031132131), we get a palindrome (3434342434343).

The spelling of 1312311302212 in words is "one trillion, three hundred twelve billion, three hundred eleven million, three hundred two thousand, two hundred twelve".