231550430421533 has 8 divisors (see below), whose sum is σ = 233084571809856. Its totient is φ = 230016298176000.

The previous prime is 231550430421511. The next prime is 231550430421643. The reversal of 231550430421533 is 335124034055132.

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 231550430421533 - 2⁶ = 231550430421469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231550430921533) 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, 52939613 + ... + 57146333.

It is an arithmetic number, because the mean of its divisors is an integer number (29135571476232).

Almost surely, 2^{231550430421533} is an apocalyptic number.

It is an amenable number.

231550430421533 is a deficient number, since it is larger than the sum of its proper divisors (1534141388323).

231550430421533 is a wasteful number, since it uses less digits than its factorization.

231550430421533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571395.

The product of its (nonzero) digits is 648000, while the sum is 41.

Adding to 231550430421533 its reverse (335124034055132), we get a palindrome (566674464476665).

The spelling of 231550430421533 in words is "two hundred thirty-one trillion, five hundred fifty billion, four hundred thirty million, four hundred twenty-one thousand, five hundred thirty-three".