321223210001231 has 2 divisors, whose sum is σ = 321223210001232. Its totient is φ = 321223210001230.

The previous prime is 321223210001201. The next prime is 321223210001251. The reversal of 321223210001231 is 132100012322123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321223210001231 - 2⁶ = 321223210001167 is a prime.

It is a super-2 number, since 2×321223210001231² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321223210001197 and 321223210001206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321223210001201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160611605000615 + 160611605000616.

It is an arithmetic number, because the mean of its divisors is an integer number (160611605000616).

Almost surely, 2^{321223210001231} is an apocalyptic number.

321223210001231 is a deficient number, since it is larger than the sum of its proper divisors (1).

321223210001231 is an equidigital number, since it uses as much as digits as its factorization.

321223210001231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 321223210001231 its reverse (132100012322123), we get a palindrome (453323222323354).

The spelling of 321223210001231 in words is "three hundred twenty-one trillion, two hundred twenty-three billion, two hundred ten million, one thousand, two hundred thirty-one".