3903242321 has 6 divisors (see below), whose sum is σ = 4290340866. Its totient is φ = 3548402000.

The previous prime is 3903242303. The next prime is 3903242351. The reversal of 3903242321 is 1232423093.

It can be written as a sum of positive squares in only one way, i.e., 2970795025 + 932447296 = 54505^2 + 30536^2 .

It is not a de Polignac number, because 3903242321 - 2³⁰ = 2829500497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3903242351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16128980 + ... + 16129221.

It is an arithmetic number, because the mean of its divisors is an integer number (715056811).

Almost surely, 2^3903242321 is an apocalyptic number.

It is an amenable number.

3903242321 is a deficient number, since it is larger than the sum of its proper divisors (387098545).

3903242321 is a wasteful number, since it uses less digits than its factorization.

3903242321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32258223 (or 32258212 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3903242321 is about 62475.9339345960. The cubic root of 3903242321 is about 1574.4970018535.

The spelling of 3903242321 in words is "three billion, nine hundred three million, two hundred forty-two thousand, three hundred twenty-one".