213234043111 has 16 divisors (see below), whose sum is σ = 218574046080. Its totient is φ = 207961125120.

The previous prime is 213234043109. The next prime is 213234043123. The reversal of 213234043111 is 111340432312.

It is a cyclic number.

It is not a de Polignac number, because 213234043111 - 2¹ = 213234043109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213234049111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3365521 + ... + 3428293.

It is an arithmetic number, because the mean of its divisors is an integer number (13660877880).

Almost surely, 2^213234043111 is an apocalyptic number.

213234043111 is a deficient number, since it is larger than the sum of its proper divisors (5340002969).

213234043111 is a wasteful number, since it uses less digits than its factorization.

213234043111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63306.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 213234043111 its reverse (111340432312), we get a palindrome (324574475423).

The spelling of 213234043111 in words is "two hundred thirteen billion, two hundred thirty-four million, forty-three thousand, one hundred eleven".