20131041504542 has 8 divisors (see below), whose sum is σ = 30363394093032. Its totient is φ = 10009910140200.

The previous prime is 20131041504487. The next prime is 20131041504547. The reversal of 20131041504542 is 24540514013102.

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

It is a junction number, because it is equal to n+sod(n) for n = 20131041504499 and 20131041504508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131041504547) 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, 27805305584 + ... + 27805306307.

It is an arithmetic number, because the mean of its divisors is an integer number (3795424261629).

Almost surely, 2^{20131041504542} is an apocalyptic number.

20131041504542 is a deficient number, since it is larger than the sum of its proper divisors (10232352588490).

20131041504542 is a wasteful number, since it uses less digits than its factorization.

20131041504542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55610612074.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 20131041504542 its reverse (24540514013102), we get a palindrome (44671555517644).

The spelling of 20131041504542 in words is "twenty trillion, one hundred thirty-one billion, forty-one million, five hundred four thousand, five hundred forty-two".