201031010110321 has 2 divisors, whose sum is σ = 201031010110322. Its totient is φ = 201031010110320.

The previous prime is 201031010110279. The next prime is 201031010110349. The reversal of 201031010110321 is 123011010130102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191035548476721 + 9995461633600 = 13821561^2 + 3161560^2 .

It is a cyclic number.

It is not a de Polignac number, because 201031010110321 - 2¹⁵ = 201031010077553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201031010110295 and 201031010110304.

It is not a weakly prime, because it can be changed into another prime (201031010119321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100515505055160 + 100515505055161.

It is an arithmetic number, because the mean of its divisors is an integer number (100515505055161).

Almost surely, 2^{201031010110321} is an apocalyptic number.

It is an amenable number.

201031010110321 is a deficient number, since it is larger than the sum of its proper divisors (1).

201031010110321 is an equidigital number, since it uses as much as digits as its factorization.

201031010110321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 201031010110321 its reverse (123011010130102), we get a palindrome (324042020240423).

The spelling of 201031010110321 in words is "two hundred one trillion, thirty-one billion, ten million, one hundred ten thousand, three hundred twenty-one".