531313340531 has 4 divisors (see below), whose sum is σ = 531316950000. Its totient is φ = 531309731064.

The previous prime is 531313340479. The next prime is 531313340539. The reversal of 531313340531 is 135043313135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531313340531 - 2¹⁴ = 531313324147 is a prime.

It is a super-2 number, since 2×531313340531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531313340539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1574111 + ... + 1881608.

It is an arithmetic number, because the mean of its divisors is an integer number (132829237500).

Almost surely, 2^531313340531 is an apocalyptic number.

531313340531 is a deficient number, since it is larger than the sum of its proper divisors (3609469).

531313340531 is a wasteful number, since it uses less digits than its factorization.

531313340531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609468.

The product of its (nonzero) digits is 24300, while the sum is 32.

Adding to 531313340531 its reverse (135043313135), we get a palindrome (666356653666).

The spelling of 531313340531 in words is "five hundred thirty-one billion, three hundred thirteen million, three hundred forty thousand, five hundred thirty-one".