213443011 has 2 divisors, whose sum is σ = 213443012. Its totient is φ = 213443010.

The previous prime is 213442993. The next prime is 213443023. The reversal of 213443011 is 110344312.

213443011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213443011 - 2¹⁹ = 212918723 is a prime.

It is a super-2 number, since 2×213443011² = 91115837889492242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213443011.

It is not a weakly prime, because it can be changed into another prime (213443051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106721505 + 106721506.

It is an arithmetic number, because the mean of its divisors is an integer number (106721506).

Almost surely, 2^213443011 is an apocalyptic number.

213443011 is a deficient number, since it is larger than the sum of its proper divisors (1).

213443011 is an equidigital number, since it uses as much as digits as its factorization.

213443011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 213443011 is about 14609.6889426161. The cubic root of 213443011 is about 597.6230132512.

Adding to 213443011 its reverse (110344312), we get a palindrome (323787323).

The spelling of 213443011 in words is "two hundred thirteen million, four hundred forty-three thousand, eleven".