20113230232111 has 2 divisors, whose sum is σ = 20113230232112. Its totient is φ = 20113230232110.

The previous prime is 20113230232099. The next prime is 20113230232157. The reversal of 20113230232111 is 11123203231102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20113230232111 - 2¹⁷ = 20113230101039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113230272111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056615116055 + 10056615116056.

It is an arithmetic number, because the mean of its divisors is an integer number (10056615116056).

Almost surely, 2^{20113230232111} is an apocalyptic number.

20113230232111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113230232111 is an equidigital number, since it uses as much as digits as its factorization.

20113230232111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20113230232111 its reverse (11123203231102), we get a palindrome (31236433463213).

The spelling of 20113230232111 in words is "twenty trillion, one hundred thirteen billion, two hundred thirty million, two hundred thirty-two thousand, one hundred eleven".