13120204421 has 8 divisors (see below), whose sum is σ = 13212530688. Its totient is φ = 13027950000.

The previous prime is 13120204373. The next prime is 13120204457. The reversal of 13120204421 is 12440202131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13120204421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13120204393 and 13120204402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120204021) 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, 379196 + ... + 412346.

It is an arithmetic number, because the mean of its divisors is an integer number (1651566336).

Almost surely, 2^13120204421 is an apocalyptic number.

It is an amenable number.

13120204421 is a deficient number, since it is larger than the sum of its proper divisors (92326267).

13120204421 is a wasteful number, since it uses less digits than its factorization.

13120204421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35923.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13120204421 its reverse (12440202131), we get a palindrome (25560406552).

The spelling of 13120204421 in words is "thirteen billion, one hundred twenty million, two hundred four thousand, four hundred twenty-one".