13200112042421 has 4 divisors (see below), whose sum is σ = 13359149536992. Its totient is φ = 13041074547852.

The previous prime is 13200112042409. The next prime is 13200112042427. The reversal of 13200112042421 is 12424021100231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13200112042421 - 2³⁴ = 13182932173237 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 (13200112042427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79518747161 + ... + 79518747326.

It is an arithmetic number, because the mean of its divisors is an integer number (3339787384248).

Almost surely, 2^{13200112042421} is an apocalyptic number.

It is an amenable number.

13200112042421 is a deficient number, since it is larger than the sum of its proper divisors (159037494571).

13200112042421 is an equidigital number, since it uses as much as digits as its factorization.

13200112042421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159037494570.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 13200112042421 its reverse (12424021100231), we get a palindrome (25624133142652).

The spelling of 13200112042421 in words is "thirteen trillion, two hundred billion, one hundred twelve million, forty-two thousand, four hundred twenty-one".