213263311 has 2 divisors, whose sum is σ = 213263312. Its totient is φ = 213263310.

The previous prime is 213263287. The next prime is 213263329. The reversal of 213263311 is 113362312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213263311 - 2⁵ = 213263279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213263341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106631655 + 106631656.

It is an arithmetic number, because the mean of its divisors is an integer number (106631656).

Almost surely, 2^213263311 is an apocalyptic number.

213263311 is a deficient number, since it is larger than the sum of its proper divisors (1).

213263311 is an equidigital number, since it uses as much as digits as its factorization.

213263311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 213263311 is about 14603.5376193579. The cubic root of 213263311 is about 597.4552510501.

Subtracting from 213263311 its reverse (113362312), we obtain a palindrome (99900999).

The spelling of 213263311 in words is "two hundred thirteen million, two hundred sixty-three thousand, three hundred eleven".