12131312422 has 16 divisors (see below), whose sum is σ = 18899470800. Its totient is φ = 5833156000.

The previous prime is 12131312419. The next prime is 12131312423. The reversal of 12131312422 is 22421313121.

It is a super-3 number, since 3×12131312422³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12131312393 and 12131312402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131312423) 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, 402097 + ... + 431212.

It is an arithmetic number, because the mean of its divisors is an integer number (1181216925).

Almost surely, 2^12131312422 is an apocalyptic number.

12131312422 is a deficient number, since it is larger than the sum of its proper divisors (6768158378).

12131312422 is a wasteful number, since it uses less digits than its factorization.

12131312422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833591.

The product of its digits is 576, while the sum is 22.

Adding to 12131312422 its reverse (22421313121), we get a palindrome (34552625543).

The spelling of 12131312422 in words is "twelve billion, one hundred thirty-one million, three hundred twelve thousand, four hundred twenty-two".