203130100997 has 2 divisors, whose sum is σ = 203130100998. Its totient is φ = 203130100996.

The previous prime is 203130100981. The next prime is 203130101023. The reversal of 203130100997 is 799001031302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193394134756 + 9735966241 = 439766^2 + 98671^2 .

It is a cyclic number.

It is not a de Polignac number, because 203130100997 - 2⁴ = 203130100981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203130100297) 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, 101565050498 + 101565050499.

It is an arithmetic number, because the mean of its divisors is an integer number (101565050499).

Almost surely, 2^203130100997 is an apocalyptic number.

It is an amenable number.

203130100997 is a deficient number, since it is larger than the sum of its proper divisors (1).

203130100997 is an equidigital number, since it uses as much as digits as its factorization.

203130100997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 35.

The spelling of 203130100997 in words is "two hundred three billion, one hundred thirty million, one hundred thousand, nine hundred ninety-seven".