113121163 has 2 divisors, whose sum is σ = 113121164. Its totient is φ = 113121162.

The previous prime is 113121161. The next prime is 113121167. The reversal of 113121163 is 361121311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113121163 - 2¹ = 113121161 is a prime.

Together with 113121161, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 113121163.

It is not a weakly prime, because it can be changed into another prime (113121161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56560581 + 56560582.

It is an arithmetic number, because the mean of its divisors is an integer number (56560582).

Almost surely, 2^113121163 is an apocalyptic number.

113121163 is a deficient number, since it is larger than the sum of its proper divisors (1).

113121163 is an equidigital number, since it uses as much as digits as its factorization.

113121163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 19.

The square root of 113121163 is about 10635.8433140020. The cubic root of 113121163 is about 483.6315454436.

Adding to 113121163 its reverse (361121311), we get a palindrome (474242474).

The spelling of 113121163 in words is "one hundred thirteen million, one hundred twenty-one thousand, one hundred sixty-three".