321201223231 has 32 divisors (see below), whose sum is σ = 372815614080. Its totient is φ = 271054080000.

The previous prime is 321201223201. The next prime is 321201223243. The reversal of 321201223231 is 132322102123.

It is a cyclic number.

It is not a de Polignac number, because 321201223231 - 2¹⁷ = 321201092159 is a prime.

It is a super-2 number, since 2×321201223231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321201223201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117697875 + ... + 117700603.

It is an arithmetic number, because the mean of its divisors is an integer number (11650487940).

Almost surely, 2^321201223231 is an apocalyptic number.

321201223231 is a deficient number, since it is larger than the sum of its proper divisors (51614390849).

321201223231 is a wasteful number, since it uses less digits than its factorization.

321201223231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3715.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 321201223231 its reverse (132322102123), we get a palindrome (453523325354).

The spelling of 321201223231 in words is "three hundred twenty-one billion, two hundred one million, two hundred twenty-three thousand, two hundred thirty-one".