213333111011 has 2 divisors, whose sum is σ = 213333111012. Its totient is φ = 213333111010.

The previous prime is 213333111007. The next prime is 213333111023. The reversal of 213333111011 is 110111333312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213333111011 - 2² = 213333111007 is a prime.

It is a super-2 number, since 2×213333111011² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (213333116011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106666555505 + 106666555506.

It is an arithmetic number, because the mean of its divisors is an integer number (106666555506).

Almost surely, 2^213333111011 is an apocalyptic number.

213333111011 is a deficient number, since it is larger than the sum of its proper divisors (1).

213333111011 is an equidigital number, since it uses as much as digits as its factorization.

213333111011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 213333111011 its reverse (110111333312), we get a palindrome (323444444323).

The spelling of 213333111011 in words is "two hundred thirteen billion, three hundred thirty-three million, one hundred eleven thousand, eleven".