213013201111 has 2 divisors, whose sum is σ = 213013201112. Its totient is φ = 213013201110.

The previous prime is 213013201087. The next prime is 213013201123. The reversal of 213013201111 is 111102310312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213013201111 - 2²¹ = 213011103959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213013271111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106506600555 + 106506600556.

It is an arithmetic number, because the mean of its divisors is an integer number (106506600556).

Almost surely, 2^213013201111 is an apocalyptic number.

213013201111 is a deficient number, since it is larger than the sum of its proper divisors (1).

213013201111 is an equidigital number, since it uses as much as digits as its factorization.

213013201111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 213013201111 its reverse (111102310312), we get a palindrome (324115511423).

The spelling of 213013201111 in words is "two hundred thirteen billion, thirteen million, two hundred one thousand, one hundred eleven".