231322323221201 has 4 divisors (see below), whose sum is σ = 232707486833472. Its totient is φ = 229937159608932.

The previous prime is 231322323221189. The next prime is 231322323221219. The reversal of 231322323221201 is 102122323223132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231322323221201 - 2⁶ = 231322323221137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231322323221291) 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, 692581805885 + ... + 692581806218.

It is an arithmetic number, because the mean of its divisors is an integer number (58176871708368).

Almost surely, 2^{231322323221201} is an apocalyptic number.

It is an amenable number.

231322323221201 is a deficient number, since it is larger than the sum of its proper divisors (1385163612271).

231322323221201 is a wasteful number, since it uses less digits than its factorization.

231322323221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385163612270.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 231322323221201 its reverse (102122323223132), we get a palindrome (333444646444333).

The spelling of 231322323221201 in words is "two hundred thirty-one trillion, three hundred twenty-two billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred one".