23343421 has 2 divisors, whose sum is σ = 23343422. Its totient is φ = 23343420.

The previous prime is 23343407. The next prime is 23343433. The reversal of 23343421 is 12434332.

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., 13039321 + 10304100 = 3611^2 + 3210^2 .

It is a cyclic number.

It is not a de Polignac number, because 23343421 - 2¹⁷ = 23212349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23343392 and 23343401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23343491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11671710 + 11671711.

It is an arithmetic number, because the mean of its divisors is an integer number (11671711).

Almost surely, 2^23343421 is an apocalyptic number.

It is an amenable number.

23343421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23343421 is an equidigital number, since it uses as much as digits as its factorization.

23343421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 22.

The square root of 23343421 is about 4831.5029752656. The cubic root of 23343421 is about 285.7951366783.

Adding to 23343421 its reverse (12434332), we get a palindrome (35777753).

The spelling of 23343421 in words is "twenty-three million, three hundred forty-three thousand, four hundred twenty-one".