213424235423 has 16 divisors (see below), whose sum is σ = 251103659520. Its totient is φ = 177565978656.

The previous prime is 213424235417. The next prime is 213424235441. The reversal of 213424235423 is 324532424312.

It is a cyclic number.

It is not a de Polignac number, because 213424235423 - 2²² = 213420041119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213424235023) 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, 874811 + ... + 1091852.

It is an arithmetic number, because the mean of its divisors is an integer number (15693978720).

Almost surely, 2^213424235423 is an apocalyptic number.

213424235423 is a deficient number, since it is larger than the sum of its proper divisors (37679424097).

213424235423 is a wasteful number, since it uses less digits than its factorization.

213424235423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967126.

The product of its digits is 138240, while the sum is 35.

Adding to 213424235423 its reverse (324532424312), we get a palindrome (537956659735).

The spelling of 213424235423 in words is "two hundred thirteen billion, four hundred twenty-four million, two hundred thirty-five thousand, four hundred twenty-three".