20524431530142 has 24 divisors (see below), whose sum is σ = 46116623933016. Its totient is φ = 6841477176552.

The previous prime is 20524431530131. The next prime is 20524431530147. The reversal of 20524431530142 is 24103513442502.

It is a happy number.

20524431530142 is a `hidden beast` number, since 2 + 0 + 52 + 4 + 4 + 31 + 530 + 1 + 42 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 20524431530097 and 20524431530106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524431530147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21115669813 + ... + 21115670784.

It is an arithmetic number, because the mean of its divisors is an integer number (1921525997209).

Almost surely, 2^{20524431530142} is an apocalyptic number.

20524431530142 is an abundant number, since it is smaller than the sum of its proper divisors (25592192402874).

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

20524431530142 is an equidigital number, since it uses as much as digits as its factorization.

20524431530142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42231340614 (or 42231340602 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 20524431530142 its reverse (24103513442502), we get a palindrome (44627944972644).

The spelling of 20524431530142 in words is "twenty trillion, five hundred twenty-four billion, four hundred thirty-one million, five hundred thirty thousand, one hundred forty-two".