113081 has 2 divisors, whose sum is σ = 113082. Its totient is φ = 113080.

The previous prime is 113063. The next prime is 113083. The reversal of 113081 is 180311.

113081 is nontrivially palindromic in base 4.

113081 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99856 + 13225 = 316^2 + 115^2 .

It is an emirp because it is prime and its reverse (180311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113081 - 2⁶ = 113017 is a prime.

It is a super-2 number, since 2×113081² = 25574625122, which contains 22 as substring.

Together with 113083, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56540 + 56541.

It is an arithmetic number, because the mean of its divisors is an integer number (56541).

2¹¹³⁰⁸¹ is an apocalyptic number.

It is an amenable number.

113081 is a deficient number, since it is larger than the sum of its proper divisors (1).

113081 is an equidigital number, since it uses as much as digits as its factorization.

113081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 113081 is about 336.2751849304. The cubic root of 113081 is about 48.3574301828.

Adding to 113081 its reverse (180311), we get a palindrome (293392).

The spelling of 113081 in words is "one hundred thirteen thousand, eighty-one".