12312403234424 has 16 divisors (see below), whose sum is σ = 23138343214800. Its totient is φ = 6142178377152.

The previous prime is 12312403234423. The next prime is 12312403234441. The reversal of 12312403234424 is 42443230421321.

It is a happy number.

It is a super-2 number, since 2×12312403234424² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312403234423) 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, 1752901277 + ... + 1752908300.

It is an arithmetic number, because the mean of its divisors is an integer number (1446146450925).

Almost surely, 2^{12312403234424} is an apocalyptic number.

It is an amenable number.

12312403234424 is a deficient number, since it is larger than the sum of its proper divisors (10825939980376).

12312403234424 is a wasteful number, since it uses less digits than its factorization.

12312403234424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3505810022 (or 3505810018 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 35.

Adding to 12312403234424 its reverse (42443230421321), we get a palindrome (54755633655745).

The spelling of 12312403234424 in words is "twelve trillion, three hundred twelve billion, four hundred three million, two hundred thirty-four thousand, four hundred twenty-four".