531320514131 has 16 divisors (see below), whose sum is σ = 599701224960. Its totient is φ = 466291381920.

The previous prime is 531320514103. The next prime is 531320514157. The reversal of 531320514131 is 131415023135.

It is a cyclic number.

It is not a de Polignac number, because 531320514131 - 2³⁴ = 514140644947 is a prime.

It is a super-2 number, since 2×531320514131² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531320514094 and 531320514103.

It is not an unprimeable number, because it can be changed into a prime (531320514931) 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 15 ways as a sum of consecutive naturals, for example, 2014016 + ... + 2262498.

It is an arithmetic number, because the mean of its divisors is an integer number (37481326560).

Almost surely, 2^531320514131 is an apocalyptic number.

531320514131 is a deficient number, since it is larger than the sum of its proper divisors (68380710829).

531320514131 is a wasteful number, since it uses less digits than its factorization.

531320514131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255226.

The product of its (nonzero) digits is 5400, while the sum is 29.

Adding to 531320514131 its reverse (131415023135), we get a palindrome (662735537266).

The spelling of 531320514131 in words is "five hundred thirty-one billion, three hundred twenty million, five hundred fourteen thousand, one hundred thirty-one".