12352432321 has 2 divisors, whose sum is σ = 12352432322. Its totient is φ = 12352432320.

The previous prime is 12352432307. The next prime is 12352432363. The reversal of 12352432321 is 12323425321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11062832400 + 1289599921 = 105180^2 + 35911^2 .

It is a cyclic number.

It is not a de Polignac number, because 12352432321 - 2¹¹ = 12352430273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12352432321.

It is not a weakly prime, because it can be changed into another prime (12352432381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6176216160 + 6176216161.

It is an arithmetic number, because the mean of its divisors is an integer number (6176216161).

Almost surely, 2^12352432321 is an apocalyptic number.

It is an amenable number.

12352432321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12352432321 is an equidigital number, since it uses as much as digits as its factorization.

12352432321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

Adding to 12352432321 its reverse (12323425321), we get a palindrome (24675857642).

The spelling of 12352432321 in words is "twelve billion, three hundred fifty-two million, four hundred thirty-two thousand, three hundred twenty-one".