1312202012005 has 8 divisors (see below), whose sum is σ = 1574713704600. Its totient is φ = 1049714082816.

The previous prime is 1312202011979. The next prime is 1312202012027. The reversal of 1312202012005 is 5002102022131.

It can be written as a sum of positive squares in 4 ways, for example, as 583135358689 + 729066653316 = 763633^2 + 853854^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312202012005 - 2¹⁵ = 1312201979237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5819140 + ... + 6040429.

It is an arithmetic number, because the mean of its divisors is an integer number (196839213075).

Almost surely, 2^{1312202012005} is an apocalyptic number.

It is an amenable number.

1312202012005 is a deficient number, since it is larger than the sum of its proper divisors (262511692595).

1312202012005 is a wasteful number, since it uses less digits than its factorization.

1312202012005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11881703.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 1312202012005 its reverse (5002102022131), we get a palindrome (6314304034136).

The spelling of 1312202012005 in words is "one trillion, three hundred twelve billion, two hundred two million, twelve thousand, five".