12312303223 has 4 divisors (see below), whose sum is σ = 13431603528. Its totient is φ = 11193002920.

The previous prime is 12312303169. The next prime is 12312303229. The reversal of 12312303223 is 32230321321.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12312303223 - 2⁹ = 12312302711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12312303194 and 12312303203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312303229) 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, 559650136 + ... + 559650157.

It is an arithmetic number, because the mean of its divisors is an integer number (3357900882).

Almost surely, 2^12312303223 is an apocalyptic number.

12312303223 is a deficient number, since it is larger than the sum of its proper divisors (1119300305).

12312303223 is a wasteful number, since it uses less digits than its factorization.

12312303223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119300304.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12312303223 its reverse (32230321321), we get a palindrome (44542624544).

The spelling of 12312303223 in words is "twelve billion, three hundred twelve million, three hundred three thousand, two hundred twenty-three".