21233142814111 has 2 divisors, whose sum is σ = 21233142814112. Its totient is φ = 21233142814110.

The previous prime is 21233142814069. The next prime is 21233142814223. The reversal of 21233142814111 is 11141824133212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21233142814111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21233142884111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10616571407055 + 10616571407056.

It is an arithmetic number, because the mean of its divisors is an integer number (10616571407056).

Almost surely, 2^{21233142814111} is an apocalyptic number.

21233142814111 is a deficient number, since it is larger than the sum of its proper divisors (1).

21233142814111 is an equidigital number, since it uses as much as digits as its factorization.

21233142814111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 34.

Adding to 21233142814111 its reverse (11141824133212), we get a palindrome (32374966947323).

The spelling of 21233142814111 in words is "twenty-one trillion, two hundred thirty-three billion, one hundred forty-two million, eight hundred fourteen thousand, one hundred eleven".