23205011 has 2 divisors, whose sum is σ = 23205012. Its totient is φ = 23205010.

The previous prime is 23204971. The next prime is 23205067. The reversal of 23205011 is 11050232.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23205011 - 2²² = 19010707 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23205811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11602505 + 11602506.

It is an arithmetic number, because the mean of its divisors is an integer number (11602506).

Almost surely, 2^23205011 is an apocalyptic number.

23205011 is a deficient number, since it is larger than the sum of its proper divisors (1).

23205011 is an equidigital number, since it uses as much as digits as its factorization.

23205011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 23205011 is about 4817.1579795560. The cubic root of 23205011 is about 285.2291621520.

Adding to 23205011 its reverse (11050232), we get a palindrome (34255243).

The spelling of 23205011 in words is "twenty-three million, two hundred five thousand, eleven".