213240133111 has 2 divisors, whose sum is σ = 213240133112. Its totient is φ = 213240133110.

The previous prime is 213240133031. The next prime is 213240133129. The reversal of 213240133111 is 111331042312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213240133111 - 2¹¹ = 213240131063 is a prime.

It is a super-3 number, since 3×213240133111³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213240163111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106620066555 + 106620066556.

It is an arithmetic number, because the mean of its divisors is an integer number (106620066556).

Almost surely, 2^213240133111 is an apocalyptic number.

213240133111 is a deficient number, since it is larger than the sum of its proper divisors (1).

213240133111 is an equidigital number, since it uses as much as digits as its factorization.

213240133111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 213240133111 its reverse (111331042312), we get a palindrome (324571175423).

The spelling of 213240133111 in words is "two hundred thirteen billion, two hundred forty million, one hundred thirty-three thousand, one hundred eleven".