321232250369 has 2 divisors, whose sum is σ = 321232250370. Its totient is φ = 321232250368.

The previous prime is 321232250347. The next prime is 321232250389. The reversal of 321232250369 is 963052232123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 314345242225 + 6887008144 = 560665^2 + 82988^2 .

It is a cyclic number.

It is not a de Polignac number, because 321232250369 - 2¹² = 321232246273 is a prime.

It is a super-2 number, since 2×321232250369² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (321232250309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160616125184 + 160616125185.

It is an arithmetic number, because the mean of its divisors is an integer number (160616125185).

Almost surely, 2^321232250369 is an apocalyptic number.

It is an amenable number.

321232250369 is a deficient number, since it is larger than the sum of its proper divisors (1).

321232250369 is an equidigital number, since it uses as much as digits as its factorization.

321232250369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 321232250369 in words is "three hundred twenty-one billion, two hundred thirty-two million, two hundred fifty thousand, three hundred sixty-nine".