20233213312111 has 2 divisors, whose sum is σ = 20233213312112. Its totient is φ = 20233213312110.

The previous prime is 20233213312043. The next prime is 20233213312201. The reversal of 20233213312111 is 11121331233202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20233213312111 - 2⁹ = 20233213311599 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20233213312211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10116606656055 + 10116606656056.

It is an arithmetic number, because the mean of its divisors is an integer number (10116606656056).

Almost surely, 2^{20233213312111} is an apocalyptic number.

20233213312111 is a deficient number, since it is larger than the sum of its proper divisors (1).

20233213312111 is an equidigital number, since it uses as much as digits as its factorization.

20233213312111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20233213312111 its reverse (11121331233202), we get a palindrome (31354544545313).

The spelling of 20233213312111 in words is "twenty trillion, two hundred thirty-three billion, two hundred thirteen million, three hundred twelve thousand, one hundred eleven".