13120112003321 has 16 divisors (see below), whose sum is σ = 13924374887376. Its totient is φ = 12319485198336.

The previous prime is 13120112003269. The next prime is 13120112003347. The reversal of 13120112003321 is 12330021102131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1425490335721 + 11694621667600 = 1193939^2 + 3419740^2 .

It is a cyclic number.

It is not a de Polignac number, because 13120112003321 - 2¹⁰ = 13120112002297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13120112003293 and 13120112003302.

It is not an unprimeable number, because it can be changed into a prime (13120112003221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15849905 + ... + 16657121.

It is an arithmetic number, because the mean of its divisors is an integer number (870273430461).

Almost surely, 2^{13120112003321} is an apocalyptic number.

It is an amenable number.

13120112003321 is a deficient number, since it is larger than the sum of its proper divisors (804262884055).

13120112003321 is a wasteful number, since it uses less digits than its factorization.

13120112003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809468.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13120112003321 its reverse (12330021102131), we get a palindrome (25450133105452).

The spelling of 13120112003321 in words is "thirteen trillion, one hundred twenty billion, one hundred twelve million, three thousand, three hundred twenty-one".