213232340423 has 4 divisors (see below), whose sum is σ = 213233750208. Its totient is φ = 213230930640.

The previous prime is 213232340411. The next prime is 213232340437. The reversal of 213232340423 is 324043232312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213232340423 - 2⁴ = 213232340407 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 (213232340443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446423 + ... + 791048.

It is an arithmetic number, because the mean of its divisors is an integer number (53308437552).

Almost surely, 2^213232340423 is an apocalyptic number.

213232340423 is a deficient number, since it is larger than the sum of its proper divisors (1409785).

213232340423 is a wasteful number, since it uses less digits than its factorization.

213232340423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409784.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 213232340423 its reverse (324043232312), we get a palindrome (537275572735).

The spelling of 213232340423 in words is "two hundred thirteen billion, two hundred thirty-two million, three hundred forty thousand, four hundred twenty-three".