531241144340 has 24 divisors (see below), whose sum is σ = 1118976829152. Its totient is φ = 211854471840.

The previous prime is 531241144327. The next prime is 531241144361. The reversal of 531241144340 is 43441142135.

It is a junction number, because it is equal to n+sod(n) for n = 531241144297 and 531241144306.

It is a congruent number.

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, 40117334 + ... + 40130573.

It is an arithmetic number, because the mean of its divisors is an integer number (46624034548).

Almost surely, 2^531241144340 is an apocalyptic number.

It is an amenable number.

531241144340 is an abundant number, since it is smaller than the sum of its proper divisors (587735684812).

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

531241144340 is a wasteful number, since it uses less digits than its factorization.

531241144340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80248247 (or 80248245 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 531241144340 its reverse (43441142135), we get a palindrome (574682286475).

The spelling of 531241144340 in words is "five hundred thirty-one billion, two hundred forty-one million, one hundred forty-four thousand, three hundred forty".