23205043222511 has 2 divisors, whose sum is σ = 23205043222512. Its totient is φ = 23205043222510.

The previous prime is 23205043222507. The next prime is 23205043222523. The reversal of 23205043222511 is 11522234050232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23205043222511 - 2² = 23205043222507 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23205043222561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11602521611255 + 11602521611256.

It is an arithmetic number, because the mean of its divisors is an integer number (11602521611256).

Almost surely, 2^{23205043222511} is an apocalyptic number.

23205043222511 is a deficient number, since it is larger than the sum of its proper divisors (1).

23205043222511 is an equidigital number, since it uses as much as digits as its factorization.

23205043222511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 23205043222511 its reverse (11522234050232), we get a palindrome (34727277272743).

The spelling of 23205043222511 in words is "twenty-three trillion, two hundred five billion, forty-three million, two hundred twenty-two thousand, five hundred eleven".