203400097993 has 2 divisors, whose sum is σ = 203400097994. Its totient is φ = 203400097992.

The previous prime is 203400097981. The next prime is 203400098059. The reversal of 203400097993 is 399790004302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170228032569 + 33172065424 = 412587^2 + 182132^2 .

It is a cyclic number.

It is not a de Polignac number, because 203400097993 - 2⁵ = 203400097961 is a prime.

It is not a weakly prime, because it can be changed into another prime (203400097963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101700048996 + 101700048997.

It is an arithmetic number, because the mean of its divisors is an integer number (101700048997).

Almost surely, 2^203400097993 is an apocalyptic number.

It is an amenable number.

203400097993 is a deficient number, since it is larger than the sum of its proper divisors (1).

203400097993 is an equidigital number, since it uses as much as digits as its factorization.

203400097993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 367416, while the sum is 46.

The spelling of 203400097993 in words is "two hundred three billion, four hundred million, ninety-seven thousand, nine hundred ninety-three".