213144131112323 has 16 divisors (see below), whose sum is σ = 218521768671360. Its totient is φ = 207775033113600.

The previous prime is 213144131112313. The next prime is 213144131112347. The reversal of 213144131112323 is 323211131441312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213144131112323 - 2¹⁸ = 213144130850179 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213144131112323.

It is not an unprimeable number, because it can be changed into a prime (213144131112313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1237821293 + ... + 1237993473.

It is an arithmetic number, because the mean of its divisors is an integer number (13657610541960).

Almost surely, 2^{213144131112323} is an apocalyptic number.

213144131112323 is a deficient number, since it is larger than the sum of its proper divisors (5377637559037).

213144131112323 is a wasteful number, since it uses less digits than its factorization.

213144131112323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196798.

The product of its digits is 10368, while the sum is 32.

Adding to 213144131112323 its reverse (323211131441312), we get a palindrome (536355262553635).

The spelling of 213144131112323 in words is "two hundred thirteen trillion, one hundred forty-four billion, one hundred thirty-one million, one hundred twelve thousand, three hundred twenty-three".