12312440430422 has 16 divisors (see below), whose sum is σ = 20147772157632. Its totient is φ = 5596524286920.

The previous prime is 12312440430401. The next prime is 12312440430427. The reversal of 12312440430422 is 22403404421321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312440430427) 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, 1329953 + ... + 5137475.

It is an arithmetic number, because the mean of its divisors is an integer number (1259235759852).

Almost surely, 2^{12312440430422} is an apocalyptic number.

12312440430422 is a deficient number, since it is larger than the sum of its proper divisors (7835331727210).

12312440430422 is a wasteful number, since it uses less digits than its factorization.

12312440430422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3954523.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 12312440430422 its reverse (22403404421321), we get a palindrome (34715844851743).

The spelling of 12312440430422 in words is "twelve trillion, three hundred twelve billion, four hundred forty million, four hundred thirty thousand, four hundred twenty-two".