12400323122 has 8 divisors (see below), whose sum is σ = 20291437872. Its totient is φ = 5636510500.

The previous prime is 12400323119. The next prime is 12400323127. The reversal of 12400323122 is 22132300421.

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

It is a junction number, because it is equal to n+sod(n) for n = 12400323094 and 12400323103.

It is not an unprimeable number, because it can be changed into a prime (12400323127) 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, 281825504 + ... + 281825547.

It is an arithmetic number, because the mean of its divisors is an integer number (2536429734).

Almost surely, 2^12400323122 is an apocalyptic number.

12400323122 is a deficient number, since it is larger than the sum of its proper divisors (7891114750).

12400323122 is a wasteful number, since it uses less digits than its factorization.

12400323122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563651064.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12400323122 its reverse (22132300421), we get a palindrome (34532623543).

The spelling of 12400323122 in words is "twelve billion, four hundred million, three hundred twenty-three thousand, one hundred twenty-two".