113309852081 has 4 divisors (see below), whose sum is σ = 113339188032. Its totient is φ = 113280516132.

The previous prime is 113309852059. The next prime is 113309852083. The reversal of 113309852081 is 180258903311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 180258903311 = 9199 ⋅19595489.

It is a cyclic number.

It is not a de Polignac number, because 113309852081 - 2¹⁸ = 113309589937 is a prime.

It is a super-2 number, since 2×113309852081² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113309852083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14662181 + ... + 14669906.

It is an arithmetic number, because the mean of its divisors is an integer number (28334797008).

Almost surely, 2^113309852081 is an apocalyptic number.

It is an amenable number.

113309852081 is a deficient number, since it is larger than the sum of its proper divisors (29335951).

113309852081 is an equidigital number, since it uses as much as digits as its factorization.

113309852081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29335950.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 113309852081 in words is "one hundred thirteen billion, three hundred nine million, eight hundred fifty-two thousand, eighty-one".