203406473801 has 2 divisors, whose sum is σ = 203406473802. Its totient is φ = 203406473800.

The previous prime is 203406473741. The next prime is 203406473807. The reversal of 203406473801 is 108374604302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120044925625 + 83361548176 = 346475^2 + 288724^2 .

It is a cyclic number.

It is not a de Polignac number, because 203406473801 - 2²⁶ = 203339364937 is a prime.

It is not a weakly prime, because it can be changed into another prime (203406473807) 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, 101703236900 + 101703236901.

It is an arithmetic number, because the mean of its divisors is an integer number (101703236901).

Almost surely, 2^203406473801 is an apocalyptic number.

It is an amenable number.

203406473801 is a deficient number, since it is larger than the sum of its proper divisors (1).

203406473801 is an equidigital number, since it uses as much as digits as its factorization.

203406473801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 38.

The spelling of 203406473801 in words is "two hundred three billion, four hundred six million, four hundred seventy-three thousand, eight hundred one".