203085345600073 has 2 divisors, whose sum is σ = 203085345600074. Its totient is φ = 203085345600072.

The previous prime is 203085345599977. The next prime is 203085345600089. The reversal of 203085345600073 is 370006543580302.

203085345600073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121540327868089 + 81545017731984 = 11024533^2 + 9030228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203085345600073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203085345599996 and 203085345600032.

It is not a weakly prime, because it can be changed into another prime (203085345610073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101542672800036 + 101542672800037.

It is an arithmetic number, because the mean of its divisors is an integer number (101542672800037).

Almost surely, 2^{203085345600073} is an apocalyptic number.

It is an amenable number.

203085345600073 is a deficient number, since it is larger than the sum of its proper divisors (1).

203085345600073 is an equidigital number, since it uses as much as digits as its factorization.

203085345600073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 46.

The spelling of 203085345600073 in words is "two hundred three trillion, eighty-five billion, three hundred forty-five million, six hundred thousand, seventy-three".