531440244231 has 8 divisors (see below), whose sum is σ = 763093684080. Its totient is φ = 327040150272.

The previous prime is 531440244217. The next prime is 531440244259. The reversal of 531440244231 is 132442044135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531440244231 - 2¹⁰ = 531440243207 is a prime.

It is a super-2 number, since 2×531440244231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531440244192 and 531440244201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531440244431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6813336426 + ... + 6813336503.

It is an arithmetic number, because the mean of its divisors is an integer number (95386710510).

Almost surely, 2^531440244231 is an apocalyptic number.

531440244231 is a deficient number, since it is larger than the sum of its proper divisors (231653439849).

531440244231 is a wasteful number, since it uses less digits than its factorization.

531440244231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13626672945.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 531440244231 its reverse (132442044135), we get a palindrome (663882288366).

The spelling of 531440244231 in words is "five hundred thirty-one billion, four hundred forty million, two hundred forty-four thousand, two hundred thirty-one".