6531043120 has 40 divisors (see below), whose sum is σ = 17353916064. Its totient is φ = 2239214592.

The previous prime is 6531043111. The next prime is 6531043139. The reversal of 6531043120 is 213401356.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5830729 + ... + 5831848.

Almost surely, 2^6531043120 is an apocalyptic number.

It is an amenable number.

6531043120 is an abundant number, since it is smaller than the sum of its proper divisors (10822872944).

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

6531043120 is a wasteful number, since it uses less digits than its factorization.

6531043120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11662597 (or 11662591 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 6531043120 is about 80814.8694238876. The cubic root of 6531043120 is about 1869.2218558885.

Adding to 6531043120 its reverse (213401356), we get a palindrome (6744444476).

The spelling of 6531043120 in words is "six billion, five hundred thirty-one million, forty-three thousand, one hundred twenty".