1312034002605 has 24 divisors (see below), whose sum is σ = 2373070197888. Its totient is φ = 669327490656.

The previous prime is 1312034002561. The next prime is 1312034002607. The reversal of 1312034002605 is 5062004302131.

1312034002605 is a `hidden beast` number, since 1 + 3 + 1 + 20 + 34 + 0 + 0 + 2 + 605 = 666.

It is not a de Polignac number, because 1312034002605 - 2¹³ = 1312033994413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312034002607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 633831817 + ... + 633833886.

It is an arithmetic number, because the mean of its divisors is an integer number (98877924912).

Almost surely, 2^{1312034002605} is an apocalyptic number.

1312034002605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312034002605 is a deficient number, since it is larger than the sum of its proper divisors (1061036195283).

1312034002605 is a wasteful number, since it uses less digits than its factorization.

1312034002605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1267665737 (or 1267665734 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 1312034002605 its reverse (5062004302131), we get a palindrome (6374038304736).

The spelling of 1312034002605 in words is "one trillion, three hundred twelve billion, thirty-four million, two thousand, six hundred five".