13120421034344 has 32 divisors (see below), whose sum is σ = 26493815313000. Its totient is φ = 6055428663552.

The previous prime is 13120421034311. The next prime is 13120421034359. The reversal of 13120421034344 is 44343012402131.

It can be written as a sum of positive squares in 4 ways, for example, as 12993213252100 + 127207782244 = 3604610^2 + 356662^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13120421034344.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2701262 + ... + 5791170.

Almost surely, 2^{13120421034344} is an apocalyptic number.

It is an amenable number.

13120421034344 is an abundant number, since it is smaller than the sum of its proper divisors (13373394278656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13120421034344 is a wasteful number, since it uses less digits than its factorization.

13120421034344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130757 (or 3130753 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 13120421034344 its reverse (44343012402131), we get a palindrome (57463433436475).

The spelling of 13120421034344 in words is "thirteen trillion, one hundred twenty billion, four hundred twenty-one million, thirty-four thousand, three hundred forty-four".