13425420427 has 4 divisors (see below), whose sum is σ = 13441422960. Its totient is φ = 13409417896.

The previous prime is 13425420383. The next prime is 13425420431. The reversal of 13425420427 is 72402452431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72402452431 = 1223 ⋅59200697.

It is a cyclic number.

It is not a de Polignac number, because 13425420427 - 2⁷ = 13425420299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13425420392 and 13425420401.

It is not an unprimeable number, because it can be changed into a prime (13425420497) 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, 8000008 + ... + 8001685.

It is an arithmetic number, because the mean of its divisors is an integer number (3360355740).

Almost surely, 2^13425420427 is an apocalyptic number.

13425420427 is a deficient number, since it is larger than the sum of its proper divisors (16002533).

13425420427 is an equidigital number, since it uses as much as digits as its factorization.

13425420427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16002532.

The product of its (nonzero) digits is 53760, while the sum is 34.

Adding to 13425420427 its reverse (72402452431), we get a palindrome (85827872858).

The spelling of 13425420427 in words is "thirteen billion, four hundred twenty-five million, four hundred twenty thousand, four hundred twenty-seven".