23236121 has 2 divisors, whose sum is σ = 23236122. Its totient is φ = 23236120.

The previous prime is 23236097. The next prime is 23236123. The reversal of 23236121 is 12163232.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23232400 + 3721 = 4820^2 + 61^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23236121 is a prime.

Together with 23236123, it forms a pair of twin primes.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 23236093 and 23236102.

It is not a weakly prime, because it can be changed into another prime (23236123) 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, 11618060 + 11618061.

It is an arithmetic number, because the mean of its divisors is an integer number (11618061).

Almost surely, 2^23236121 is an apocalyptic number.

It is an amenable number.

23236121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23236121 is an equidigital number, since it uses as much as digits as its factorization.

23236121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 20.

The square root of 23236121 is about 4820.3859803962. The cubic root of 23236121 is about 285.3565702184.

Adding to 23236121 its reverse (12163232), we get a palindrome (35399353).

The spelling of 23236121 in words is "twenty-three million, two hundred thirty-six thousand, one hundred twenty-one".