231234213223 has 8 divisors (see below), whose sum is σ = 251225191728. Its totient is φ = 211558053504.

The previous prime is 231234213167. The next prime is 231234213233. The reversal of 231234213223 is 322312432132.

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 231234213223 - 2³³ = 222644278631 is a prime.

It is a super-2 number, since 2×231234213223² (a number of 24 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 = 231234213191 and 231234213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231234213233) 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, 78703165 + ... + 78706102.

It is an arithmetic number, because the mean of its divisors is an integer number (31403148966).

Almost surely, 2^231234213223 is an apocalyptic number.

231234213223 is a deficient number, since it is larger than the sum of its proper divisors (19990978505).

231234213223 is a wasteful number, since it uses less digits than its factorization.

231234213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157409393.

The product of its digits is 10368, while the sum is 28.

Adding to 231234213223 its reverse (322312432132), we get a palindrome (553546645355).

The spelling of 231234213223 in words is "two hundred thirty-one billion, two hundred thirty-four million, two hundred thirteen thousand, two hundred twenty-three".