1317787431411 has 32 divisors (see below), whose sum is σ = 1998203774976. Its totient is φ = 765243360000.

The previous prime is 1317787431397. The next prime is 1317787431437. The reversal of 1317787431411 is 1141347877131.

It is not a de Polignac number, because 1317787431411 - 2¹⁸ = 1317787169267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1317787431451) 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 31 ways as a sum of consecutive naturals, for example, 6273706 + ... + 6480351.

It is an arithmetic number, because the mean of its divisors is an integer number (62443867968).

Almost surely, 2^{1317787431411} is an apocalyptic number.

1317787431411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1317787431411 is a deficient number, since it is larger than the sum of its proper divisors (680416343565).

1317787431411 is a wasteful number, since it uses less digits than its factorization.

1317787431411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12754203.

The product of its digits is 395136, while the sum is 48.

The spelling of 1317787431411 in words is "one trillion, three hundred seventeen billion, seven hundred eighty-seven million, four hundred thirty-one thousand, four hundred eleven".