213423022231 has 8 divisors (see below), whose sum is σ = 215506563584. Its totient is φ = 211339701720.

The previous prime is 213423022177. The next prime is 213423022237. The reversal of 213423022231 is 132220324312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213423022231 - 2²³ = 213414633623 is a prime.

It is a super-2 number, since 2×213423022231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213423022196 and 213423022205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213423022237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429566 + ... + 2515876.

It is an arithmetic number, because the mean of its divisors is an integer number (26938320448).

Almost surely, 2^213423022231 is an apocalyptic number.

213423022231 is a deficient number, since it is larger than the sum of its proper divisors (2083541353).

213423022231 is a wasteful number, since it uses less digits than its factorization.

213423022231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110421.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 213423022231 its reverse (132220324312), we get a palindrome (345643346543).

The spelling of 213423022231 in words is "two hundred thirteen billion, four hundred twenty-three million, twenty-two thousand, two hundred thirty-one".