1311060353205 has 16 divisors (see below), whose sum is σ = 2102003961984. Its totient is φ = 697796389440.

The previous prime is 1311060353143. The next prime is 1311060353209. The reversal of 1311060353205 is 5023530601131.

It is not a de Polignac number, because 1311060353205 - 2⁷ = 1311060353077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311060353209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89729886 + ... + 89744495.

It is an arithmetic number, because the mean of its divisors is an integer number (131375247624).

Almost surely, 2^{1311060353205} is an apocalyptic number.

1311060353205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311060353205 is a deficient number, since it is larger than the sum of its proper divisors (790943608779).

1311060353205 is a wasteful number, since it uses less digits than its factorization.

1311060353205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179474876.

The product of its (nonzero) digits is 8100, while the sum is 30.

Adding to 1311060353205 its reverse (5023530601131), we get a palindrome (6334590954336).

The spelling of 1311060353205 in words is "one trillion, three hundred eleven billion, sixty million, three hundred fifty-three thousand, two hundred five".