531533245100013 has 48 divisors (see below), whose sum is σ = 842073586308864. Its totient is φ = 321106296188160.

The previous prime is 531533245100009. The next prime is 531533245100029. The reversal of 531533245100013 is 310001542335135.

531533245100013 is a `hidden beast` number, since 5 + 3 + 1 + 533 + 2 + 4 + 5 + 100 + 0 + 13 = 666.

It is not a de Polignac number, because 531533245100013 - 2² = 531533245100009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531533245100083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 135373881 + ... + 139244942.

It is an arithmetic number, because the mean of its divisors is an integer number (17543199714768).

Almost surely, 2^{531533245100013} is an apocalyptic number.

It is an amenable number.

531533245100013 is a deficient number, since it is larger than the sum of its proper divisors (310540341208851).

531533245100013 is a wasteful number, since it uses less digits than its factorization.

531533245100013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274619146 (or 274619143 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 531533245100013 its reverse (310001542335135), we get a palindrome (841534787435148).

The spelling of 531533245100013 in words is "five hundred thirty-one trillion, five hundred thirty-three billion, two hundred forty-five million, one hundred thousand, thirteen".