321032133223231 has 4 divisors (see below), whose sum is σ = 321038517272032. Its totient is φ = 321025749174432.

The previous prime is 321032133223213. The next prime is 321032133223237. The reversal of 321032133223231 is 132322331230123.

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 321032133223231 - 2⁵ = 321032133223199 is a prime.

It is a super-2 number, since 2×321032133223231² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321032133223193 and 321032133223202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321032133223237) 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, 3191948970 + ... + 3192049543.

It is an arithmetic number, because the mean of its divisors is an integer number (80259629318008).

Almost surely, 2^{321032133223231} is an apocalyptic number.

321032133223231 is a deficient number, since it is larger than the sum of its proper divisors (6384048801).

321032133223231 is an equidigital number, since it uses as much as digits as its factorization.

321032133223231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6384048800.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 321032133223231 its reverse (132322331230123), we get a palindrome (453354464453354).

The spelling of 321032133223231 in words is "three hundred twenty-one trillion, thirty-two billion, one hundred thirty-three million, two hundred twenty-three thousand, two hundred thirty-one".