236113121 has 2 divisors, whose sum is σ = 236113122. Its totient is φ = 236113120.

The previous prime is 236113109. The next prime is 236113123. The reversal of 236113121 is 121311632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147282496 + 88830625 = 12136^2 + 9425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-236113121 is a prime.

Together with 236113123, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 236113093 and 236113102.

It is not a weakly prime, because it can be changed into another prime (236113123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118056560 + 118056561.

It is an arithmetic number, because the mean of its divisors is an integer number (118056561).

Almost surely, 2^236113121 is an apocalyptic number.

It is an amenable number.

236113121 is a deficient number, since it is larger than the sum of its proper divisors (1).

236113121 is an equidigital number, since it uses as much as digits as its factorization.

236113121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

The square root of 236113121 is about 15365.9728295998. The cubic root of 236113121 is about 618.0733819782.

Adding to 236113121 its reverse (121311632), we get a palindrome (357424753).

The spelling of 236113121 in words is "two hundred thirty-six million, one hundred thirteen thousand, one hundred twenty-one".