31023200120201 has 2 divisors, whose sum is σ = 31023200120202. Its totient is φ = 31023200120200.

The previous prime is 31023200120153. The next prime is 31023200120303. The reversal of 31023200120201 is 10202100232013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30133292784400 + 889907335801 = 5489380^2 + 943349^2 .

It is a cyclic number.

It is not a de Polignac number, because 31023200120201 - 2¹⁴ = 31023200103817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31023200120201.

It is not a weakly prime, because it can be changed into another prime (31023200120501) 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, 15511600060100 + 15511600060101.

It is an arithmetic number, because the mean of its divisors is an integer number (15511600060101).

Almost surely, 2^{31023200120201} is an apocalyptic number.

It is an amenable number.

31023200120201 is a deficient number, since it is larger than the sum of its proper divisors (1).

31023200120201 is an equidigital number, since it uses as much as digits as its factorization.

31023200120201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31023200120201 its reverse (10202100232013), we get a palindrome (41225300352214).

The spelling of 31023200120201 in words is "thirty-one trillion, twenty-three billion, two hundred million, one hundred twenty thousand, two hundred one".