213331013212111 has 2 divisors, whose sum is σ = 213331013212112. Its totient is φ = 213331013212110.

The previous prime is 213331013212087. The next prime is 213331013212117. The reversal of 213331013212111 is 111212310133312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213331013212111 - 2¹⁹ = 213331012687823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213331013212117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106665506606055 + 106665506606056.

It is an arithmetic number, because the mean of its divisors is an integer number (106665506606056).

Almost surely, 2^{213331013212111} is an apocalyptic number.

213331013212111 is a deficient number, since it is larger than the sum of its proper divisors (1).

213331013212111 is an equidigital number, since it uses as much as digits as its factorization.

213331013212111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 213331013212111 its reverse (111212310133312), we get a palindrome (324543323345423).

The spelling of 213331013212111 in words is "two hundred thirteen trillion, three hundred thirty-one billion, thirteen million, two hundred twelve thousand, one hundred eleven".