203200431097 has 2 divisors, whose sum is σ = 203200431098. Its totient is φ = 203200431096.

The previous prime is 203200431059. The next prime is 203200431107. The reversal of 203200431097 is 790134002302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184985149801 + 18215281296 = 430099^2 + 134964^2 .

It is a cyclic number.

It is not a de Polignac number, because 203200431097 - 2¹⁹ = 203199906809 is a prime.

It is not a weakly prime, because it can be changed into another prime (203200431037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101600215548 + 101600215549.

It is an arithmetic number, because the mean of its divisors is an integer number (101600215549).

Almost surely, 2^203200431097 is an apocalyptic number.

It is an amenable number.

203200431097 is a deficient number, since it is larger than the sum of its proper divisors (1).

203200431097 is an equidigital number, since it uses as much as digits as its factorization.

203200431097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 31.

Adding to 203200431097 its reverse (790134002302), we get a palindrome (993334433399).

The spelling of 203200431097 in words is "two hundred three billion, two hundred million, four hundred thirty-one thousand, ninety-seven".