13420242423 has 48 divisors (see below), whose sum is σ = 23654991360. Its totient is φ = 7164666432.

The previous prime is 13420242419. The next prime is 13420242427. The reversal of 13420242423 is 32424202431.

13420242423 is a `hidden beast` number, since 1 + 34 + 202 + 4 + 2 + 423 = 666.

It is an interprime number because it is at equal distance from previous prime (13420242419) and next prime (13420242427).

It is not a de Polignac number, because 13420242423 - 2² = 13420242419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13420242427) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45388 + ... + 170001.

It is an arithmetic number, because the mean of its divisors is an integer number (492812320).

Almost surely, 2^13420242423 is an apocalyptic number.

13420242423 is a deficient number, since it is larger than the sum of its proper divisors (10234748937).

13420242423 is a wasteful number, since it uses less digits than its factorization.

13420242423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215468 (or 215465 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 13420242423 its reverse (32424202431), we get a palindrome (45844444854).

The spelling of 13420242423 in words is "thirteen billion, four hundred twenty million, two hundred forty-two thousand, four hundred twenty-three".