23425321 has 2 divisors, whose sum is σ = 23425322. Its totient is φ = 23425320.

The previous prime is 23425319. The next prime is 23425343. The reversal of 23425321 is 12352432.

It is an a-pointer prime, because the next prime (23425343) can be obtained adding 23425321 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15523600 + 7901721 = 3940^2 + 2811^2 .

It is a cyclic number.

It is not a de Polignac number, because 23425321 - 2¹ = 23425319 is a prime.

Together with 23425319, 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 = 23425292 and 23425301.

It is not a weakly prime, because it can be changed into another prime (23425421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11712660 + 11712661.

It is an arithmetic number, because the mean of its divisors is an integer number (11712661).

Almost surely, 2^23425321 is an apocalyptic number.

It is an amenable number.

23425321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23425321 is an equidigital number, since it uses as much as digits as its factorization.

23425321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 22.

The square root of 23425321 is about 4839.9711776001. The cubic root of 23425321 is about 286.1289823617.

Adding to 23425321 its reverse (12352432), we get a palindrome (35777753).

The spelling of 23425321 in words is "twenty-three million, four hundred twenty-five thousand, three hundred twenty-one".