23421353 has 2 divisors, whose sum is σ = 23421354. Its totient is φ = 23421352.

The previous prime is 23421347. The next prime is 23421371. The reversal of 23421353 is 35312432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19784704 + 3636649 = 4448^2 + 1907^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23421353 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (23421313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11710676 + 11710677.

It is an arithmetic number, because the mean of its divisors is an integer number (11710677).

Almost surely, 2^23421353 is an apocalyptic number.

It is an amenable number.

23421353 is a deficient number, since it is larger than the sum of its proper divisors (1).

23421353 is an equidigital number, since it uses as much as digits as its factorization.

23421353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 23.

The square root of 23421353 is about 4839.5612404432. The cubic root of 23421353 is about 286.1128257149.

Adding to 23421353 its reverse (35312432), we get a palindrome (58733785).

The spelling of 23421353 in words is "twenty-three million, four hundred twenty-one thousand, three hundred fifty-three".