23033221111 has 2 divisors, whose sum is σ = 23033221112. Its totient is φ = 23033221110.

The previous prime is 23033221109. The next prime is 23033221117. The reversal of 23033221111 is 11112233032.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23033221111 - 2¹ = 23033221109 is a prime.

Together with 23033221109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23033221117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11516610555 + 11516610556.

It is an arithmetic number, because the mean of its divisors is an integer number (11516610556).

Almost surely, 2^23033221111 is an apocalyptic number.

23033221111 is a deficient number, since it is larger than the sum of its proper divisors (1).

23033221111 is an equidigital number, since it uses as much as digits as its factorization.

23033221111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23033221111 its reverse (11112233032), we get a palindrome (34145454143).

The spelling of 23033221111 in words is "twenty-three billion, thirty-three million, two hundred twenty-one thousand, one hundred eleven".