13122012423412 has 12 divisors (see below), whose sum is σ = 22966588093540. Its totient is φ = 6560130110976.

The previous prime is 13122012423407. The next prime is 13122012423451. The reversal of 13122012423412 is 21432421022131.

It can be written as a sum of positive squares in 2 ways, for example, as 6196883337316 + 6925129086096 = 2489354^2 + 2631564^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218991483 + ... + 219051394.

Almost surely, 2^{13122012423412} is an apocalyptic number.

It is an amenable number.

13122012423412 is a deficient number, since it is larger than the sum of its proper divisors (9844575670128).

13122012423412 is a wasteful number, since it uses less digits than its factorization.

13122012423412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438050370 (or 438050368 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 13122012423412 its reverse (21432421022131), we get a palindrome (34554433445543).

The spelling of 13122012423412 in words is "thirteen trillion, one hundred twenty-two billion, twelve million, four hundred twenty-three thousand, four hundred twelve".