23202110111111 has 2 divisors, whose sum is σ = 23202110111112. Its totient is φ = 23202110111110.

The previous prime is 23202110111041. The next prime is 23202110111143. The reversal of 23202110111111 is 11111101120232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23202110111111 - 2¹⁰ = 23202110110087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23202110111111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23202110111711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601055055555 + 11601055055556.

It is an arithmetic number, because the mean of its divisors is an integer number (11601055055556).

Almost surely, 2^{23202110111111} is an apocalyptic number.

23202110111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

23202110111111 is an equidigital number, since it uses as much as digits as its factorization.

23202110111111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 23202110111111 its reverse (11111101120232), we get a palindrome (34313211231343).

The spelling of 23202110111111 in words is "twenty-three trillion, two hundred two billion, one hundred ten million, one hundred eleven thousand, one hundred eleven".