113242242287 has 2 divisors, whose sum is σ = 113242242288. Its totient is φ = 113242242286.

The previous prime is 113242242283. The next prime is 113242242353. The reversal of 113242242287 is 782242242311.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (782242242311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113242242287 - 2² = 113242242283 is a prime.

It is a super-2 number, since 2×113242242287² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 113242242287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113242242283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56621121143 + 56621121144.

It is an arithmetic number, because the mean of its divisors is an integer number (56621121144).

Almost surely, 2^113242242287 is an apocalyptic number.

113242242287 is a deficient number, since it is larger than the sum of its proper divisors (1).

113242242287 is an equidigital number, since it uses as much as digits as its factorization.

113242242287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86016, while the sum is 38.

Adding to 113242242287 its reverse (782242242311), we get a palindrome (895484484598).

The spelling of 113242242287 in words is "one hundred thirteen billion, two hundred forty-two million, two hundred forty-two thousand, two hundred eighty-seven".