23211323 has 2 divisors, whose sum is σ = 23211324. Its totient is φ = 23211322.

The previous prime is 23211319. The next prime is 23211329. The reversal of 23211323 is 32311232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23211323 - 2² = 23211319 is a prime.

It is not a weakly prime, because it can be changed into another prime (23211329) 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, 11605661 + 11605662.

It is an arithmetic number, because the mean of its divisors is an integer number (11605662).

Almost surely, 2^23211323 is an apocalyptic number.

23211323 is a deficient number, since it is larger than the sum of its proper divisors (1).

23211323 is an equidigital number, since it uses as much as digits as its factorization.

23211323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 17.

The square root of 23211323 is about 4817.8130930952. The cubic root of 23211323 is about 285.2550215559.

Adding to 23211323 its reverse (32311232), we get a palindrome (55522555).

Subtracting 23211323 from its reverse (32311232), we obtain a palindrome (9099909).

The spelling of 23211323 in words is "twenty-three million, two hundred eleven thousand, three hundred twenty-three".