10118881 has 2 divisors, whose sum is σ = 10118882. Its totient is φ = 10118880.

The previous prime is 10118879. The next prime is 10118897. The reversal of 10118881 is 18881101.

10118881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9150625 + 968256 = 3025^2 + 984^2 .

It is a cyclic number.

It is not a de Polignac number, because 10118881 - 2¹ = 10118879 is a prime.

It is a super-2 number, since 2×10118881² = 204783505384322, which contains 22 as substring.

Together with 10118879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10118831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5059440 + 5059441.

It is an arithmetic number, because the mean of its divisors is an integer number (5059441).

Almost surely, 2^10118881 is an apocalyptic number.

It is an amenable number.

10118881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10118881 is an equidigital number, since it uses as much as digits as its factorization.

10118881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 512, while the sum is 28.

The square root of 10118881 is about 3181.0188619372. The cubic root of 10118881 is about 216.2938458991.

Adding to 10118881 its reverse (18881101), we get a palindrome (28999982).

The spelling of 10118881 in words is "ten million, one hundred eighteen thousand, eight hundred eighty-one".