20123332111 has 2 divisors, whose sum is σ = 20123332112. Its totient is φ = 20123332110.

The previous prime is 20123332093. The next prime is 20123332121. The reversal of 20123332111 is 11123332102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20123332111 - 2¹⁷ = 20123201039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123332121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061666055 + 10061666056.

It is an arithmetic number, because the mean of its divisors is an integer number (10061666056).

Almost surely, 2^20123332111 is an apocalyptic number.

20123332111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123332111 is an equidigital number, since it uses as much as digits as its factorization.

20123332111 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 20123332111 its reverse (11123332102), we get a palindrome (31246664213).

Subtracting from 20123332111 its reverse (11123332102), we obtain a palindrome (9000000009).

The spelling of 20123332111 in words is "twenty billion, one hundred twenty-three million, three hundred thirty-two thousand, one hundred eleven".