11481235581287 has 2 divisors, whose sum is σ = 11481235581288. Its totient is φ = 11481235581286.

The previous prime is 11481235581269. The next prime is 11481235581301. The reversal of 11481235581287 is 78218553218411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11481235581287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11481235581587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5740617790643 + 5740617790644.

It is an arithmetic number, because the mean of its divisors is an integer number (5740617790644).

Almost surely, 2^{11481235581287} is an apocalyptic number.

11481235581287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11481235581287 is an equidigital number, since it uses as much as digits as its factorization.

11481235581287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4300800, while the sum is 56.

Adding to 11481235581287 its reverse (78218553218411), we get a palindrome (89699788799698).

The spelling of 11481235581287 in words is "eleven trillion, four hundred eighty-one billion, two hundred thirty-five million, five hundred eighty-one thousand, two hundred eighty-seven".