12312441321 has 8 divisors (see below), whose sum is σ = 16427317344. Its totient is φ = 8202929760.

The previous prime is 12312441307. The next prime is 12312441359. The reversal of 12312441321 is 12314421321.

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

It is not a de Polignac number, because 12312441321 - 2⁶ = 12312441257 is a prime.

It is a super-2 number, since 2×12312441321² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12312441291 and 12312441300.

It is not an unprimeable number, because it can be changed into a prime (12312441371) 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, 1335756 + ... + 1344941.

It is an arithmetic number, because the mean of its divisors is an integer number (2053414668).

Almost surely, 2^12312441321 is an apocalyptic number.

It is an amenable number.

12312441321 is a deficient number, since it is larger than the sum of its proper divisors (4114876023).

12312441321 is a wasteful number, since it uses less digits than its factorization.

12312441321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2682231.

The product of its digits is 1152, while the sum is 24.

Adding to 12312441321 its reverse (12314421321), we get a palindrome (24626862642).

The spelling of 12312441321 in words is "twelve billion, three hundred twelve million, four hundred forty-one thousand, three hundred twenty-one".