13120423422121 has 16 divisors (see below), whose sum is σ = 13282843060800. Its totient is φ = 12958343335168.

The previous prime is 13120423422107. The next prime is 13120423422199. The reversal of 13120423422121 is 12122432402131.

It is a cyclic number.

It is not a de Polignac number, because 13120423422121 - 2⁵ = 13120423422089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13120423422121.

It is not an unprimeable number, because it can be changed into a prime (13120423422101) 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, 436473990 + ... + 436504048.

It is an arithmetic number, because the mean of its divisors is an integer number (830177691300).

Almost surely, 2^{13120423422121} is an apocalyptic number.

It is an amenable number.

13120423422121 is a deficient number, since it is larger than the sum of its proper divisors (162419638679).

13120423422121 is a wasteful number, since it uses less digits than its factorization.

13120423422121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35528.

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

Adding to 13120423422121 its reverse (12122432402131), we get a palindrome (25242855824252).

The spelling of 13120423422121 in words is "thirteen trillion, one hundred twenty billion, four hundred twenty-three million, four hundred twenty-two thousand, one hundred twenty-one".