231211232303 has 4 divisors (see below), whose sum is σ = 231241706520. Its totient is φ = 231180758088.

The previous prime is 231211232297. The next prime is 231211232323. The reversal of 231211232303 is 303232112132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231211232303 - 2²⁰ = 231210183727 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 (231211232323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15225725 + ... + 15240902.

It is an arithmetic number, because the mean of its divisors is an integer number (57810426630).

Almost surely, 2^231211232303 is an apocalyptic number.

231211232303 is a deficient number, since it is larger than the sum of its proper divisors (30474217).

231211232303 is an equidigital number, since it uses as much as digits as its factorization.

231211232303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30474216.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 231211232303 its reverse (303232112132), we get a palindrome (534443344435).

The spelling of 231211232303 in words is "two hundred thirty-one billion, two hundred eleven million, two hundred thirty-two thousand, three hundred three".