231311222033 has 8 divisors (see below), whose sum is σ = 238742676960. Its totient is φ = 223996798080.

The previous prime is 231311221993. The next prime is 231311222053. The reversal of 231311222033 is 330222113132.

231311222033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231311222033 - 2²⁶ = 231244113169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231311222053) 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, 29253728 + ... + 29261633.

It is an arithmetic number, because the mean of its divisors is an integer number (29842834620).

Almost surely, 2^231311222033 is an apocalyptic number.

It is an amenable number.

231311222033 is a deficient number, since it is larger than the sum of its proper divisors (7431454927).

231311222033 is an equidigital number, since it uses as much as digits as its factorization.

231311222033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58515487.

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

Adding to 231311222033 its reverse (330222113132), we get a palindrome (561533335165).

The spelling of 231311222033 in words is "two hundred thirty-one billion, three hundred eleven million, two hundred twenty-two thousand, thirty-three".