394820286101 has 2 divisors, whose sum is σ = 394820286102. Its totient is φ = 394820286100.

The previous prime is 394820286089. The next prime is 394820286103. The reversal of 394820286101 is 101682028493.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 393130254001 + 1690032100 = 627001^2 + 41110^2 .

It is a cyclic number.

It is not a de Polignac number, because 394820286101 - 2¹⁰ = 394820285077 is a prime.

Together with 394820286103, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (394820286103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197410143050 + 197410143051.

It is an arithmetic number, because the mean of its divisors is an integer number (197410143051).

Almost surely, 2^394820286101 is an apocalyptic number.

It is an amenable number.

394820286101 is a deficient number, since it is larger than the sum of its proper divisors (1).

394820286101 is an equidigital number, since it uses as much as digits as its factorization.

394820286101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 394820286101 in words is "three hundred ninety-four billion, eight hundred twenty million, two hundred eighty-six thousand, one hundred one".