213432031111 has 16 divisors (see below), whose sum is σ = 231544756800. Its totient is φ = 195563174400.

The previous prime is 213432031091. The next prime is 213432031129. The reversal of 213432031111 is 111130234312.

213432031111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213432031111 - 2⁵ = 213432031079 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 (213432031411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2972686 + ... + 3043636.

It is an arithmetic number, because the mean of its divisors is an integer number (14471547300).

Almost surely, 2^213432031111 is an apocalyptic number.

213432031111 is a deficient number, since it is larger than the sum of its proper divisors (18112725689).

213432031111 is a wasteful number, since it uses less digits than its factorization.

213432031111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72666.

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

Adding to 213432031111 its reverse (111130234312), we get a palindrome (324562265423).

The spelling of 213432031111 in words is "two hundred thirteen billion, four hundred thirty-two million, thirty-one thousand, one hundred eleven".