531525321323 has 8 divisors (see below), whose sum is σ = 532352790480. Its totient is φ = 530698021920.

The previous prime is 531525321289. The next prime is 531525321329. The reversal of 531525321323 is 323123525135.

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

It is a cyclic number.

It is not a de Polignac number, because 531525321323 - 2⁶ = 531525321259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531525321329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7169561 + ... + 7243317.

It is an arithmetic number, because the mean of its divisors is an integer number (66544098810).

Almost surely, 2^531525321323 is an apocalyptic number.

531525321323 is a deficient number, since it is larger than the sum of its proper divisors (827469157).

531525321323 is a wasteful number, since it uses less digits than its factorization.

531525321323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84877.

The product of its digits is 81000, while the sum is 35.

Adding to 531525321323 its reverse (323123525135), we get a palindrome (854648846458).

The spelling of 531525321323 in words is "five hundred thirty-one billion, five hundred twenty-five million, three hundred twenty-one thousand, three hundred twenty-three".