13524352321 has 2 divisors, whose sum is σ = 13524352322. Its totient is φ = 13524352320.

The previous prime is 13524352279. The next prime is 13524352357. The reversal of 13524352321 is 12325342531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13418673921 + 105678400 = 115839^2 + 10280^2 .

It is a cyclic number.

It is not a de Polignac number, because 13524352321 - 2¹³ = 13524344129 is a prime.

It is not a weakly prime, because it can be changed into another prime (13524352421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6762176160 + 6762176161.

It is an arithmetic number, because the mean of its divisors is an integer number (6762176161).

Almost surely, 2^13524352321 is an apocalyptic number.

It is an amenable number.

13524352321 is a deficient number, since it is larger than the sum of its proper divisors (1).

13524352321 is an equidigital number, since it uses as much as digits as its factorization.

13524352321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 31.

Adding to 13524352321 its reverse (12325342531), we get a palindrome (25849694852).

The spelling of 13524352321 in words is "thirteen billion, five hundred twenty-four million, three hundred fifty-two thousand, three hundred twenty-one".