23033321 has 2 divisors, whose sum is σ = 23033322. Its totient is φ = 23033320.

The previous prime is 23033299. The next prime is 23033359. The reversal of 23033321 is 12333032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12503296 + 10530025 = 3536^2 + 3245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23033321 is a prime.

It is equal to p_1450241 and since 23033321 and 1450241 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23033321.

It is not a weakly prime, because it can be changed into another prime (23033821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11516660 + 11516661.

It is an arithmetic number, because the mean of its divisors is an integer number (11516661).

Almost surely, 2^23033321 is an apocalyptic number.

It is an amenable number.

23033321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23033321 is an equidigital number, since it uses as much as digits as its factorization.

23033321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 23033321 is about 4799.3042204053. The cubic root of 23033321 is about 284.5239657639.

Adding to 23033321 its reverse (12333032), we get a palindrome (35366353).

The spelling of 23033321 in words is "twenty-three million, thirty-three thousand, three hundred twenty-one".