13531124142 has 16 divisors (see below), whose sum is σ = 30069164880. Its totient is φ = 4510374696.

The previous prime is 13531124141. The next prime is 13531124147. The reversal of 13531124142 is 24142113531.

13531124142 is a `hidden beast` number, since 1 + 3 + 531 + 124 + 1 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531124141) 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, 125288133 + ... + 125288240.

It is an arithmetic number, because the mean of its divisors is an integer number (1879322805).

Almost surely, 2^13531124142 is an apocalyptic number.

13531124142 is an abundant number, since it is smaller than the sum of its proper divisors (16538040738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13531124142 is a wasteful number, since it uses less digits than its factorization.

13531124142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250576384 (or 250576378 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

Adding to 13531124142 its reverse (24142113531), we get a palindrome (37673237673).

The spelling of 13531124142 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-four thousand, one hundred forty-two".