231121103233 has 2 divisors, whose sum is σ = 231121103234. Its totient is φ = 231121103232.

The previous prime is 231121103231. The next prime is 231121103243. The reversal of 231121103233 is 332301121132.

231121103233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195440915569 + 35680187664 = 442087^2 + 188892^2 .

It is a cyclic number.

It is not a de Polignac number, because 231121103233 - 2¹ = 231121103231 is a prime.

Together with 231121103231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (231121103231) 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 as a sum of consecutive naturals, namely, 115560551616 + 115560551617.

It is an arithmetic number, because the mean of its divisors is an integer number (115560551617).

Almost surely, 2^231121103233 is an apocalyptic number.

It is an amenable number.

231121103233 is a deficient number, since it is larger than the sum of its proper divisors (1).

231121103233 is an equidigital number, since it uses as much as digits as its factorization.

231121103233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231121103233 its reverse (332301121132), we get a palindrome (563422224365).

The spelling of 231121103233 in words is "two hundred thirty-one billion, one hundred twenty-one million, one hundred three thousand, two hundred thirty-three".