13531142423 has 8 divisors (see below), whose sum is σ = 13768334160. Its totient is φ = 13294212480.

The previous prime is 13531142381. The next prime is 13531142447. The reversal of 13531142423 is 32424113531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13531142423 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 (13531142473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40313 + ... + 169373.

It is an arithmetic number, because the mean of its divisors is an integer number (1721041770).

Almost surely, 2^13531142423 is an apocalyptic number.

13531142423 is a deficient number, since it is larger than the sum of its proper divisors (237191737).

13531142423 is a wasteful number, since it uses less digits than its factorization.

13531142423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130897.

The product of its digits is 8640, while the sum is 29.

Adding to 13531142423 its reverse (32424113531), we get a palindrome (45955255954).

The spelling of 13531142423 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-two thousand, four hundred twenty-three".