320400201049 has 2 divisors, whose sum is σ = 320400201050. Its totient is φ = 320400201048.

The previous prime is 320400201019. The next prime is 320400201053. The reversal of 320400201049 is 940102004023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 245860280649 + 74539920400 = 495843^2 + 273020^2 .

It is a cyclic number.

It is not a de Polignac number, because 320400201049 - 2¹¹ = 320400199001 is a prime.

It is not a weakly prime, because it can be changed into another prime (320400201019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160200100524 + 160200100525.

It is an arithmetic number, because the mean of its divisors is an integer number (160200100525).

Almost surely, 2^320400201049 is an apocalyptic number.

It is an amenable number.

320400201049 is a deficient number, since it is larger than the sum of its proper divisors (1).

320400201049 is an equidigital number, since it uses as much as digits as its factorization.

320400201049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 320400201049 in words is "three hundred twenty billion, four hundred million, two hundred one thousand, forty-nine".