1031210120201 has 2 divisors, whose sum is σ = 1031210120202. Its totient is φ = 1031210120200.

The previous prime is 1031210120189. The next prime is 1031210120203. The reversal of 1031210120201 is 1020210121301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829520208400 + 201689911801 = 910780^2 + 449099^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031210120201 - 2⁶ = 1031210120137 is a prime.

It is a Sophie Germain prime.

Together with 1031210120203, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1031210120203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515605060100 + 515605060101.

It is an arithmetic number, because the mean of its divisors is an integer number (515605060101).

Almost surely, 2^{1031210120201} is an apocalyptic number.

It is an amenable number.

1031210120201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1031210120201 is an equidigital number, since it uses as much as digits as its factorization.

1031210120201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1031210120201 its reverse (1020210121301), we get a palindrome (2051420241502).

The spelling of 1031210120201 in words is "one trillion, thirty-one billion, two hundred ten million, one hundred twenty thousand, two hundred one".