213543430343023 has 16 divisors (see below), whose sum is σ = 233070192633600. Its totient is φ = 194035640342080.

The previous prime is 213543430343017. The next prime is 213543430343039. The reversal of 213543430343023 is 320343034345312.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213543430343023 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 (213543830343023) 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, 233941515 + ... + 234852547.

It is an arithmetic number, because the mean of its divisors is an integer number (14566887039600).

Almost surely, 2^{213543430343023} is an apocalyptic number.

213543430343023 is a deficient number, since it is larger than the sum of its proper divisors (19526762290577).

213543430343023 is a wasteful number, since it uses less digits than its factorization.

213543430343023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921422.

The product of its (nonzero) digits is 933120, while the sum is 40.

Adding to 213543430343023 its reverse (320343034345312), we get a palindrome (533886464688335).

The spelling of 213543430343023 in words is "two hundred thirteen trillion, five hundred forty-three billion, four hundred thirty million, three hundred forty-three thousand, twenty-three".