203081480617 has 2 divisors, whose sum is σ = 203081480618. Its totient is φ = 203081480616.

The previous prime is 203081480527. The next prime is 203081480627. The reversal of 203081480617 is 716084180302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116983836841 + 86097643776 = 342029^2 + 293424^2 .

It is a cyclic number.

It is not a de Polignac number, because 203081480617 - 2²³ = 203073092009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 203081480617.

It is not a weakly prime, because it can be changed into another prime (203081480627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101540740308 + 101540740309.

It is an arithmetic number, because the mean of its divisors is an integer number (101540740309).

Almost surely, 2^203081480617 is an apocalyptic number.

It is an amenable number.

203081480617 is a deficient number, since it is larger than the sum of its proper divisors (1).

203081480617 is an equidigital number, since it uses as much as digits as its factorization.

203081480617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The spelling of 203081480617 in words is "two hundred three billion, eighty-one million, four hundred eighty thousand, six hundred seventeen".