212331133111 has 2 divisors, whose sum is σ = 212331133112. Its totient is φ = 212331133110.

The previous prime is 212331133097. The next prime is 212331133127. The reversal of 212331133111 is 111331133212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212331133111 - 2²³ = 212322744503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212331133171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106165566555 + 106165566556.

It is an arithmetic number, because the mean of its divisors is an integer number (106165566556).

Almost surely, 2^212331133111 is an apocalyptic number.

212331133111 is a deficient number, since it is larger than the sum of its proper divisors (1).

212331133111 is an equidigital number, since it uses as much as digits as its factorization.

212331133111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 22.

Adding to 212331133111 its reverse (111331133212), we get a palindrome (323662266323).

The spelling of 212331133111 in words is "two hundred twelve billion, three hundred thirty-one million, one hundred thirty-three thousand, one hundred eleven".