213011011 has 2 divisors, whose sum is σ = 213011012. Its totient is φ = 213011010.

The previous prime is 213010997. The next prime is 213011017. The reversal of 213011011 is 110110312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213011011 - 2⁷ = 213010883 is a prime.

It is not a weakly prime, because it can be changed into another prime (213011017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106505505 + 106505506.

It is an arithmetic number, because the mean of its divisors is an integer number (106505506).

Almost surely, 2^213011011 is an apocalyptic number.

213011011 is a deficient number, since it is larger than the sum of its proper divisors (1).

213011011 is an equidigital number, since it uses as much as digits as its factorization.

213011011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 213011011 is about 14594.8967450955. The cubic root of 213011011 is about 597.2195526835.

Adding to 213011011 its reverse (110110312), we get a palindrome (323121323).

The spelling of 213011011 in words is "two hundred thirteen million, eleven thousand, eleven".