531013352140 has 48 divisors (see below), whose sum is σ = 1162360275552. Its totient is φ = 203580089856.

The previous prime is 531013352137. The next prime is 531013352141. The reversal of 531013352140 is 41253310135.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 531013352099 and 531013352108.

It is not an unprimeable number, because it can be changed into a prime (531013352141) 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, 5305537 + ... + 5404696.

It is an arithmetic number, because the mean of its divisors is an integer number (24215839074).

Almost surely, 2^531013352140 is an apocalyptic number.

It is an amenable number.

531013352140 is an abundant number, since it is smaller than the sum of its proper divisors (631346923412).

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

531013352140 is a wasteful number, since it uses less digits than its factorization.

531013352140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10710346 (or 10710344 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 531013352140 its reverse (41253310135), we get a palindrome (572266662275).

The spelling of 531013352140 in words is "five hundred thirty-one billion, thirteen million, three hundred fifty-two thousand, one hundred forty".