113312681 has 2 divisors, whose sum is σ = 113312682. Its totient is φ = 113312680.

The previous prime is 113312621. The next prime is 113312687. The reversal of 113312681 is 186213311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105247081 + 8065600 = 10259^2 + 2840^2 .

It is a cyclic number.

It is not a de Polignac number, because 113312681 - 2¹⁰ = 113311657 is a prime.

It is a super-2 number, since 2×113312681² = 25679527350815522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113312681.

It is not a weakly prime, because it can be changed into another prime (113312687) 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, 56656340 + 56656341.

It is an arithmetic number, because the mean of its divisors is an integer number (56656341).

Almost surely, 2^113312681 is an apocalyptic number.

It is an amenable number.

113312681 is a deficient number, since it is larger than the sum of its proper divisors (1).

113312681 is an equidigital number, since it uses as much as digits as its factorization.

113312681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 113312681 is about 10644.8429297947. The cubic root of 113312681 is about 483.9043264777.

Adding to 113312681 its reverse (186213311), we get a palindrome (299525992).

The spelling of 113312681 in words is "one hundred thirteen million, three hundred twelve thousand, six hundred eighty-one".