203794422397 has 2 divisors, whose sum is σ = 203794422398. Its totient is φ = 203794422396.

The previous prime is 203794422379. The next prime is 203794422413. The reversal of 203794422397 is 793224497302.

Together with previous prime (203794422379) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180328471801 + 23465950596 = 424651^2 + 153186^2 .

It is a cyclic number.

It is not a de Polignac number, because 203794422397 - 2⁷ = 203794422269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (204794422397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101897211198 + 101897211199.

It is an arithmetic number, because the mean of its divisors is an integer number (101897211199).

Almost surely, 2^203794422397 is an apocalyptic number.

It is an amenable number.

203794422397 is a deficient number, since it is larger than the sum of its proper divisors (1).

203794422397 is an equidigital number, since it uses as much as digits as its factorization.

203794422397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 52.

The spelling of 203794422397 in words is "two hundred three billion, seven hundred ninety-four million, four hundred twenty-two thousand, three hundred ninety-seven".