531321430352 has 20 divisors (see below), whose sum is σ = 1083616075680. Its totient is φ = 251678572128.

The previous prime is 531321430327. The next prime is 531321430361. The reversal of 531321430352 is 253034123135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873883628 + ... + 873884235.

It is an arithmetic number, because the mean of its divisors is an integer number (54180803784).

Almost surely, 2^531321430352 is an apocalyptic number.

It is an amenable number.

531321430352 is an abundant number, since it is smaller than the sum of its proper divisors (552294645328).

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

531321430352 is a wasteful number, since it uses less digits than its factorization.

531321430352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747767890 (or 1747767884 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

Adding to 531321430352 its reverse (253034123135), we get a palindrome (784355553487).

The spelling of 531321430352 in words is "five hundred thirty-one billion, three hundred twenty-one million, four hundred thirty thousand, three hundred fifty-two".