3901382321 has 2 divisors, whose sum is σ = 3901382322. Its totient is φ = 3901382320.

The previous prime is 3901382299. The next prime is 3901382323. The reversal of 3901382321 is 1232831093.

3901382321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3755238400 + 146143921 = 61280^2 + 12089^2 .

It is a cyclic number.

It is not a de Polignac number, because 3901382321 - 2¹⁸ = 3901120177 is a prime.

It is a super-2 number, since 2×3901382321² = 30441568029222694082, which contains 22 as substring.

Together with 3901382323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3901382323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1950691160 + 1950691161.

It is an arithmetic number, because the mean of its divisors is an integer number (1950691161).

Almost surely, 2^3901382321 is an apocalyptic number.

It is an amenable number.

3901382321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3901382321 is an equidigital number, since it uses as much as digits as its factorization.

3901382321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 3901382321 is about 62461.0464289544. The cubic root of 3901382321 is about 1574.2468653870.

The spelling of 3901382321 in words is "three billion, nine hundred one million, three hundred eighty-two thousand, three hundred twenty-one".