531432215151340 has 12 divisors (see below), whose sum is σ = 1116007651817856. Its totient is φ = 212572886060528.

The previous prime is 531432215151319. The next prime is 531432215151349. The reversal of 531432215151340 is 43151512234135.

It is a junction number, because it is equal to n+sod(n) for n = 531432215151293 and 531432215151302.

It is not an unprimeable number, because it can be changed into a prime (531432215151349) 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 3 ways as a sum of consecutive naturals, for example, 13285805378764 + ... + 13285805378803.

It is an arithmetic number, because the mean of its divisors is an integer number (93000637651488).

Almost surely, 2^{531432215151340} is an apocalyptic number.

It is an amenable number.

531432215151340 is an abundant number, since it is smaller than the sum of its proper divisors (584575436666516).

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

531432215151340 is a wasteful number, since it uses less digits than its factorization.

531432215151340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26571610757576 (or 26571610757574 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

Adding to 531432215151340 its reverse (43151512234135), we get a palindrome (574583727385475).

The spelling of 531432215151340 in words is "five hundred thirty-one trillion, four hundred thirty-two billion, two hundred fifteen million, one hundred fifty-one thousand, three hundred forty".