4303240421 has 2 divisors, whose sum is σ = 4303240422. Its totient is φ = 4303240420.

The previous prime is 4303240373. The next prime is 4303240439. The reversal of 4303240421 is 1240423034.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3027750625 + 1275489796 = 55025^2 + 35714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4303240421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4303240471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2151620210 + 2151620211.

It is an arithmetic number, because the mean of its divisors is an integer number (2151620211).

Almost surely, 2^4303240421 is an apocalyptic number.

It is an amenable number.

4303240421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4303240421 is an equidigital number, since it uses as much as digits as its factorization.

4303240421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 4303240421 is about 65599.0885683635. The cubic root of 4303240421 is about 1626.5417063701.

Adding to 4303240421 its reverse (1240423034), we get a palindrome (5543663455).

The spelling of 4303240421 in words is "four billion, three hundred three million, two hundred forty thousand, four hundred twenty-one".