213543131487 has 8 divisors (see below), whose sum is σ = 325399057536. Its totient is φ = 122024646552.

The previous prime is 213543131429. The next prime is 213543131497. The reversal of 213543131487 is 784131345312.

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

It is not a de Polignac number, because 213543131487 - 2⁶ = 213543131423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213543131497) 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, 5084360253 + ... + 5084360294.

It is an arithmetic number, because the mean of its divisors is an integer number (40674882192).

Almost surely, 2^213543131487 is an apocalyptic number.

213543131487 is a deficient number, since it is larger than the sum of its proper divisors (111855926049).

213543131487 is a wasteful number, since it uses less digits than its factorization.

213543131487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10168720557.

The product of its digits is 241920, while the sum is 42.

Adding to 213543131487 its reverse (784131345312), we get a palindrome (997674476799).

The spelling of 213543131487 in words is "two hundred thirteen billion, five hundred forty-three million, one hundred thirty-one thousand, four hundred eighty-seven".