1312200001012 has 24 divisors (see below), whose sum is σ = 2431684866240. Its totient is φ = 617846448960.

The previous prime is 1312200000983. The next prime is 1312200001019. The reversal of 1312200001012 is 2101000022131.

It is a junction number, because it is equal to n+sod(n) for n = 1312200000983 and 1312200001001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312200001019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51681289 + ... + 51706672.

It is an arithmetic number, because the mean of its divisors is an integer number (101320202760).

Almost surely, 2^{1312200001012} is an apocalyptic number.

It is an amenable number.

1312200001012 is a deficient number, since it is larger than the sum of its proper divisors (1119484865228).

1312200001012 is a wasteful number, since it uses less digits than its factorization.

1312200001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103388151 (or 103388149 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1312200001012 its reverse (2101000022131), we get a palindrome (3413200023143).

The spelling of 1312200001012 in words is "one trillion, three hundred twelve billion, two hundred million, one thousand, twelve".