201031297 has 2 divisors, whose sum is σ = 201031298. Its totient is φ = 201031296.

The previous prime is 201031213. The next prime is 201031301. The reversal of 201031297 is 792130102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151807041 + 49224256 = 12321^2 + 7016^2 .

It is a cyclic number.

It is not a de Polignac number, because 201031297 - 2¹¹ = 201029249 is a prime.

It is not a weakly prime, because it can be changed into another prime (201061297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515648 + 100515649.

It is an arithmetic number, because the mean of its divisors is an integer number (100515649).

Almost surely, 2^201031297 is an apocalyptic number.

It is an amenable number.

201031297 is a deficient number, since it is larger than the sum of its proper divisors (1).

201031297 is an equidigital number, since it uses as much as digits as its factorization.

201031297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 201031297 is about 14178.5505958825. The cubic root of 201031297 is about 585.8070017556.

Adding to 201031297 its reverse (792130102), we get a palindrome (993161399).

The spelling of 201031297 in words is "two hundred one million, thirty-one thousand, two hundred ninety-seven".