213231233011 has 2 divisors, whose sum is σ = 213231233012. Its totient is φ = 213231233010.

The previous prime is 213231232999. The next prime is 213231233041. The reversal of 213231233011 is 110332132312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213231233011 - 2¹³ = 213231224819 is a prime.

It is a super-2 number, since 2×213231233011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213231233041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106615616505 + 106615616506.

It is an arithmetic number, because the mean of its divisors is an integer number (106615616506).

Almost surely, 2^213231233011 is an apocalyptic number.

213231233011 is a deficient number, since it is larger than the sum of its proper divisors (1).

213231233011 is an equidigital number, since it uses as much as digits as its factorization.

213231233011 is an odious number, because the sum of its binary digits is odd.

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

Adding to 213231233011 its reverse (110332132312), we get a palindrome (323563365323).

The spelling of 213231233011 in words is "two hundred thirteen billion, two hundred thirty-one million, two hundred thirty-three thousand, eleven".