203132221303231 has 32 divisors (see below), whose sum is σ = 223004096870400. Its totient is φ = 183496174807680.

The previous prime is 203132221303229. The next prime is 203132221303259. The reversal of 203132221303231 is 132303122231302.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 203132221303231 - 2¹ = 203132221303229 is a prime.

It is a super-2 number, since 2×203132221303231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203132221303231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203132221363231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18272210085 + ... + 18272221201.

It is an arithmetic number, because the mean of its divisors is an integer number (6968878027200).

Almost surely, 2^{203132221303231} is an apocalyptic number.

203132221303231 is a deficient number, since it is larger than the sum of its proper divisors (19871875567169).

203132221303231 is a wasteful number, since it uses less digits than its factorization.

203132221303231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17439.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 203132221303231 its reverse (132303122231302), we get a palindrome (335435343534533).

The spelling of 203132221303231 in words is "two hundred three trillion, one hundred thirty-two billion, two hundred twenty-one million, three hundred three thousand, two hundred thirty-one".