1312060305105 has 64 divisors (see below), whose sum is σ = 2545664163840. Its totient is φ = 635884862400.

The previous prime is 1312060305053. The next prime is 1312060305109. The reversal of 1312060305105 is 5015030602131.

1312060305105 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 0 + 603 + 0 + 51 + 0 + 5 = 666.

It is not a de Polignac number, because 1312060305105 - 2¹³ = 1312060296913 is a prime.

It is a super-2 number, since 2×1312060305105² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1312060305109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3397104 + ... + 3763566.

It is an arithmetic number, because the mean of its divisors is an integer number (39776002560).

Almost surely, 2^{1312060305105} is an apocalyptic number.

1312060305105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1312060305105 is a deficient number, since it is larger than the sum of its proper divisors (1233603858735).

1312060305105 is a wasteful number, since it uses less digits than its factorization.

1312060305105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368899 (or 368893 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 1312060305105 its reverse (5015030602131), we get a palindrome (6327090907236).

The spelling of 1312060305105 in words is "one trillion, three hundred twelve billion, sixty million, three hundred five thousand, one hundred five".