12323031211 has 4 divisors (see below), whose sum is σ = 12365089632. Its totient is φ = 12280972792.

The previous prime is 12323031199. The next prime is 12323031307. The reversal of 12323031211 is 11213032321.

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 12323031211 - 2²³ = 12314642603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12323031811) 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, 21028771 + ... + 21029356.

It is an arithmetic number, because the mean of its divisors is an integer number (3091272408).

Almost surely, 2^12323031211 is an apocalyptic number.

12323031211 is a deficient number, since it is larger than the sum of its proper divisors (42058421).

12323031211 is an equidigital number, since it uses as much as digits as its factorization.

12323031211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42058420.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12323031211 its reverse (11213032321), we get a palindrome (23536063532).

The spelling of 12323031211 in words is "twelve billion, three hundred twenty-three million, thirty-one thousand, two hundred eleven".