13120442313421 has 8 divisors (see below), whose sum is σ = 13690932672384. Its totient is φ = 12549954983280.

The previous prime is 13120442313403. The next prime is 13120442313443. The reversal of 13120442313421 is 12431324402131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13120442313421 - 2¹⁷ = 13120442182349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120442313821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15773811 + ... + 16584751.

It is an arithmetic number, because the mean of its divisors is an integer number (1711366584048).

Almost surely, 2^{13120442313421} is an apocalyptic number.

It is an amenable number.

13120442313421 is a deficient number, since it is larger than the sum of its proper divisors (570490358963).

13120442313421 is an equidigital number, since it uses as much as digits as its factorization.

13120442313421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514411.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 13120442313421 its reverse (12431324402131), we get a palindrome (25551766715552).

The spelling of 13120442313421 in words is "thirteen trillion, one hundred twenty billion, four hundred forty-two million, three hundred thirteen thousand, four hundred twenty-one".