113211111287 has 2 divisors, whose sum is σ = 113211111288. Its totient is φ = 113211111286.

The previous prime is 113211111281. The next prime is 113211111289. The reversal of 113211111287 is 782111112311.

It is a strong prime.

It is an emirp because it is prime and its reverse (782111112311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113211111287 - 2⁸ = 113211111031 is a prime.

Together with 113211111289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113211111281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56605555643 + 56605555644.

It is an arithmetic number, because the mean of its divisors is an integer number (56605555644).

Almost surely, 2^113211111287 is an apocalyptic number.

113211111287 is a deficient number, since it is larger than the sum of its proper divisors (1).

113211111287 is an equidigital number, since it uses as much as digits as its factorization.

113211111287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 29.

Adding to 113211111287 its reverse (782111112311), we get a palindrome (895322223598).

The spelling of 113211111287 in words is "one hundred thirteen billion, two hundred eleven million, one hundred eleven thousand, two hundred eighty-seven".