1312140044605 has 16 divisors (see below), whose sum is σ = 1696618990080. Its totient is φ = 968433346368.

The previous prime is 1312140044569. The next prime is 1312140044609. The reversal of 1312140044605 is 5064400412131.

It is a cyclic number.

It is not a de Polignac number, because 1312140044605 - 2¹³ = 1312140036413 is a prime.

It is a super-2 number, since 2×1312140044605² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312140044609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5418195 + ... + 5655184.

It is an arithmetic number, because the mean of its divisors is an integer number (106038686880).

Almost surely, 2^{1312140044605} is an apocalyptic number.

It is an amenable number.

1312140044605 is a deficient number, since it is larger than the sum of its proper divisors (384478945475).

1312140044605 is a wasteful number, since it uses less digits than its factorization.

1312140044605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11075220.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 1312140044605 its reverse (5064400412131), we get a palindrome (6376540456736).

The spelling of 1312140044605 in words is "one trillion, three hundred twelve billion, one hundred forty million, forty-four thousand, six hundred five".