Adding to 3121342423404 its reverse (4043242431213), we get a palindrome (7164584854617).
3121342423404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an unprimeable number.
Almost surely, 23121342423404 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3121342423404 is a wasteful number, since it uses less digits than its factorization.
3121342423404 is an odious number, because the sum of its binary digits is odd.
The spelling of 3121342423404 in words is "three trillion, one hundred twenty-one billion, three hundred forty-two million, four hundred twenty-three thousand, four hundred four".