399271006201 has 2 divisors, whose sum is σ = 399271006202. Its totient is φ = 399271006200.

The previous prime is 399271006193. The next prime is 399271006261. The reversal of 399271006201 is 102600172993.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250024000576 + 149247005625 = 500024^2 + 386325^2 .

It is a cyclic number.

It is not a de Polignac number, because 399271006201 - 2³ = 399271006193 is a prime.

It is not a weakly prime, because it can be changed into another prime (399271006261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199635503100 + 199635503101.

It is an arithmetic number, because the mean of its divisors is an integer number (199635503101).

Almost surely, 2^399271006201 is an apocalyptic number.

It is an amenable number.

399271006201 is a deficient number, since it is larger than the sum of its proper divisors (1).

399271006201 is an equidigital number, since it uses as much as digits as its factorization.

399271006201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 40.

The spelling of 399271006201 in words is "three hundred ninety-nine billion, two hundred seventy-one million, six thousand, two hundred one".