231213210323 has 4 divisors (see below), whose sum is σ = 234380514648. Its totient is φ = 228045906000.

The previous prime is 231213210311. The next prime is 231213210341. The reversal of 231213210323 is 323012312132.

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 231213210323 - 2¹² = 231213206227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231213210623) 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, 1583652053 + ... + 1583652198.

It is an arithmetic number, because the mean of its divisors is an integer number (58595128662).

Almost surely, 2^231213210323 is an apocalyptic number.

231213210323 is a deficient number, since it is larger than the sum of its proper divisors (3167304325).

231213210323 is an equidigital number, since it uses as much as digits as its factorization.

231213210323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167304324.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231213210323 its reverse (323012312132), we get a palindrome (554225522455).

The spelling of 231213210323 in words is "two hundred thirty-one billion, two hundred thirteen million, two hundred ten thousand, three hundred twenty-three".