203458957057 has 2 divisors, whose sum is σ = 203458957058. Its totient is φ = 203458957056.

The previous prime is 203458957049. The next prime is 203458957063. The reversal of 203458957057 is 750759854302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168928398081 + 34530558976 = 411009^2 + 185824^2 .

It is a cyclic number.

It is not a de Polignac number, because 203458957057 - 2³ = 203458957049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203458956989 and 203458957007.

It is not a weakly prime, because it can be changed into another prime (203458957027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101729478528 + 101729478529.

It is an arithmetic number, because the mean of its divisors is an integer number (101729478529).

Almost surely, 2^203458957057 is an apocalyptic number.

It is an amenable number.

203458957057 is a deficient number, since it is larger than the sum of its proper divisors (1).

203458957057 is an equidigital number, since it uses as much as digits as its factorization.

203458957057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 203458957057 in words is "two hundred three billion, four hundred fifty-eight million, nine hundred fifty-seven thousand, fifty-seven".