1315838182231 has 2 divisors, whose sum is σ = 1315838182232. Its totient is φ = 1315838182230.

The previous prime is 1315838182223. The next prime is 1315838182279. The reversal of 1315838182231 is 1322818385131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1315838182231 - 2³ = 1315838182223 is a prime.

It is a super-2 number, since 2×1315838182231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1315838182291) 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 as a sum of consecutive naturals, namely, 657919091115 + 657919091116.

It is an arithmetic number, because the mean of its divisors is an integer number (657919091116).

Almost surely, 2^{1315838182231} is an apocalyptic number.

1315838182231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1315838182231 is an equidigital number, since it uses as much as digits as its factorization.

1315838182231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 46.

The spelling of 1315838182231 in words is "one trillion, three hundred fifteen billion, eight hundred thirty-eight million, one hundred eighty-two thousand, two hundred thirty-one".