13425430020421 has 8 divisors (see below), whose sum is σ = 13782863222784. Its totient is φ = 13070987891280.

The previous prime is 13425430020377. The next prime is 13425430020449. The reversal of 13425430020421 is 12402003452431.

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 13425430020421 - 2⁷ = 13425430020293 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 (13425430050421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 747759210 + ... + 747777163.

It is an arithmetic number, because the mean of its divisors is an integer number (1722857902848).

Almost surely, 2^{13425430020421} is an apocalyptic number.

It is an amenable number.

13425430020421 is a deficient number, since it is larger than the sum of its proper divisors (357433202363).

13425430020421 is a wasteful number, since it uses less digits than its factorization.

13425430020421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495536611.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 13425430020421 its reverse (12402003452431), we get a palindrome (25827433472852).

The spelling of 13425430020421 in words is "thirteen trillion, four hundred twenty-five billion, four hundred thirty million, twenty thousand, four hundred twenty-one".