231133122321 has 8 divisors (see below), whose sum is σ = 308544815040. Its totient is φ = 153905088912.

The previous prime is 231133122299. The next prime is 231133122331. The reversal of 231133122321 is 123221331132.

231133122321 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 not a de Polignac number, because 231133122321 - 2¹⁵ = 231133089553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231133122291 and 231133122300.

It is not an unprimeable number, because it can be changed into a prime (231133122331) 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, 45911890 + ... + 45916923.

It is an arithmetic number, because the mean of its divisors is an integer number (38568101880).

Almost surely, 2^231133122321 is an apocalyptic number.

It is an amenable number.

231133122321 is a deficient number, since it is larger than the sum of its proper divisors (77411692719).

231133122321 is an equidigital number, since it uses as much as digits as its factorization.

231133122321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91829655.

The product of its digits is 1296, while the sum is 24.

Adding to 231133122321 its reverse (123221331132), we get a palindrome (354354453453).

The spelling of 231133122321 in words is "two hundred thirty-one billion, one hundred thirty-three million, one hundred twenty-two thousand, three hundred twenty-one".