321000103231 has 2 divisors, whose sum is σ = 321000103232. Its totient is φ = 321000103230.

The previous prime is 321000103211. The next prime is 321000103247. The reversal of 321000103231 is 132301000123.

It is an a-pointer prime, because the next prime (321000103247) can be obtained adding 321000103231 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 321000103231 - 2⁵ = 321000103199 is a prime.

It is a super-2 number, since 2×321000103231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321000103211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160500051615 + 160500051616.

It is an arithmetic number, because the mean of its divisors is an integer number (160500051616).

Almost surely, 2^321000103231 is an apocalyptic number.

321000103231 is a deficient number, since it is larger than the sum of its proper divisors (1).

321000103231 is an equidigital number, since it uses as much as digits as its factorization.

321000103231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 321000103231 its reverse (132301000123), we get a palindrome (453301103354).

The spelling of 321000103231 in words is "three hundred twenty-one billion, one hundred three thousand, two hundred thirty-one".