23416121 has 2 divisors, whose sum is σ = 23416122. Its totient is φ = 23416120.

The previous prime is 23416109. The next prime is 23416187. The reversal of 23416121 is 12161432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23145721 + 270400 = 4811^2 + 520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23416121 is a prime.

It is a Sophie Germain prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23416093 and 23416102.

It is not a weakly prime, because it can be changed into another prime (23416621) 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, 11708060 + 11708061.

It is an arithmetic number, because the mean of its divisors is an integer number (11708061).

Almost surely, 2^23416121 is an apocalyptic number.

It is an amenable number.

23416121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23416121 is an equidigital number, since it uses as much as digits as its factorization.

23416121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

The square root of 23416121 is about 4839.0206653826. The cubic root of 23416121 is about 286.0915196047.

Adding to 23416121 its reverse (12161432), we get a palindrome (35577553).

The spelling of 23416121 in words is "twenty-three million, four hundred sixteen thousand, one hundred twenty-one".