213131210011 has 2 divisors, whose sum is σ = 213131210012. Its totient is φ = 213131210010.

The previous prime is 213131209997. The next prime is 213131210021. The reversal of 213131210011 is 110012131312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213131210011 - 2⁵ = 213131209979 is a prime.

It is not a weakly prime, because it can be changed into another prime (213131210021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106565605005 + 106565605006.

It is an arithmetic number, because the mean of its divisors is an integer number (106565605006).

Almost surely, 2^213131210011 is an apocalyptic number.

213131210011 is a deficient number, since it is larger than the sum of its proper divisors (1).

213131210011 is an equidigital number, since it uses as much as digits as its factorization.

213131210011 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 213131210011 its reverse (110012131312), we get a palindrome (323143341323).

The spelling of 213131210011 in words is "two hundred thirteen billion, one hundred thirty-one million, two hundred ten thousand, eleven".