203452061257 has 2 divisors, whose sum is σ = 203452061258. Its totient is φ = 203452061256.

The previous prime is 203452061203. The next prime is 203452061291. The reversal of 203452061257 is 752160254302.

203452061257 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., 203451515136 + 546121 = 451056^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 203452061257 - 2⁷ = 203452061129 is a prime.

It is not a weakly prime, because it can be changed into another prime (203452061557) 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, 101726030628 + 101726030629.

It is an arithmetic number, because the mean of its divisors is an integer number (101726030629).

Almost surely, 2^203452061257 is an apocalyptic number.

It is an amenable number.

203452061257 is a deficient number, since it is larger than the sum of its proper divisors (1).

203452061257 is an equidigital number, since it uses as much as digits as its factorization.

203452061257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 37.

The spelling of 203452061257 in words is "two hundred three billion, four hundred fifty-two million, sixty-one thousand, two hundred fifty-seven".