4353113521 has 2 divisors, whose sum is σ = 4353113522. Its totient is φ = 4353113520.

The previous prime is 4353113497. The next prime is 4353113549. The reversal of 4353113521 is 1253113534.

It is a happy number.

It is an a-pointer prime, because the next prime (4353113549) can be obtained adding 4353113521 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3051347121 + 1301766400 = 55239^2 + 36080^2 .

It is a cyclic number.

It is not a de Polignac number, because 4353113521 - 2⁷ = 4353113393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4353113521.

It is not a weakly prime, because it can be changed into another prime (4353113581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2176556760 + 2176556761.

It is an arithmetic number, because the mean of its divisors is an integer number (2176556761).

Almost surely, 2^4353113521 is an apocalyptic number.

It is an amenable number.

4353113521 is a deficient number, since it is larger than the sum of its proper divisors (1).

4353113521 is an equidigital number, since it uses as much as digits as its factorization.

4353113521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 28.

The square root of 4353113521 is about 65978.1291110926. The cubic root of 4353113521 is about 1632.8012754817.

The spelling of 4353113521 in words is "four billion, three hundred fifty-three million, one hundred thirteen thousand, five hundred twenty-one".