1317113265321 has 24 divisors (see below), whose sum is σ = 2182305425664. Its totient is φ = 749858886720.

The previous prime is 1317113265313. The next prime is 1317113265329. The reversal of 1317113265321 is 1235623117131.

1317113265321 is a `hidden beast` number, since 1 + 3 + 1 + 7 + 1 + 1 + 326 + 5 + 321 = 666.

It is an interprime number because it is at equal distance from previous prime (1317113265313) and next prime (1317113265329).

It is not a de Polignac number, because 1317113265321 - 2³ = 1317113265313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1317113265329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38555916 + ... + 38590061.

It is an arithmetic number, because the mean of its divisors is an integer number (90929392736).

Almost surely, 2^{1317113265321} is an apocalyptic number.

It is an amenable number.

1317113265321 is a deficient number, since it is larger than the sum of its proper divisors (865192160343).

1317113265321 is a wasteful number, since it uses less digits than its factorization.

1317113265321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77146261 (or 77146258 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The spelling of 1317113265321 in words is "one trillion, three hundred seventeen billion, one hundred thirteen million, two hundred sixty-five thousand, three hundred twenty-one".