3942241321 has 2 divisors, whose sum is σ = 3942241322. Its totient is φ = 3942241320.

The previous prime is 3942241313. The next prime is 3942241361. The reversal of 3942241321 is 1231422493.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3926400921 + 15840400 = 62661^2 + 3980^2 .

It is a cyclic number.

It is not a de Polignac number, because 3942241321 - 2³ = 3942241313 is a prime.

It is not a weakly prime, because it can be changed into another prime (3942241301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971120660 + 1971120661.

It is an arithmetic number, because the mean of its divisors is an integer number (1971120661).

Almost surely, 2^3942241321 is an apocalyptic number.

It is an amenable number.

3942241321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3942241321 is an equidigital number, since it uses as much as digits as its factorization.

3942241321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 3942241321 is about 62787.2703738584. The cubic root of 3942241321 is about 1579.7234629253.

The spelling of 3942241321 in words is "three billion, nine hundred forty-two million, two hundred forty-one thousand, three hundred twenty-one".