213012011 has 2 divisors, whose sum is σ = 213012012. Its totient is φ = 213012010.

The previous prime is 213012001. The next prime is 213012043. The reversal of 213012011 is 110210312.

213012011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213012011 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 213011983 and 213012001.

It is not a weakly prime, because it can be changed into another prime (213012001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106506005 + 106506006.

It is an arithmetic number, because the mean of its divisors is an integer number (106506006).

Almost surely, 2^213012011 is an apocalyptic number.

213012011 is a deficient number, since it is larger than the sum of its proper divisors (1).

213012011 is an equidigital number, since it uses as much as digits as its factorization.

213012011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 213012011 is about 14594.9310036053. The cubic root of 213012011 is about 597.2204872497.

Adding to 213012011 its reverse (110210312), we get a palindrome (323222323).

It can be divided in two parts, 2130 and 12011, that added together give a palindrome (14141).

The spelling of 213012011 in words is "two hundred thirteen million, twelve thousand, eleven".