201203200120997 has 2 divisors, whose sum is σ = 201203200120998. Its totient is φ = 201203200120996.

The previous prime is 201203200120981. The next prime is 201203200121041. The reversal of 201203200120997 is 799021002302102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182053115202436 + 19150084918561 = 13492706^2 + 4376081^2 .

It is a cyclic number.

It is not a de Polignac number, because 201203200120997 - 2⁴ = 201203200120981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201203200120997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201203200120297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100601600060498 + 100601600060499.

It is an arithmetic number, because the mean of its divisors is an integer number (100601600060499).

Almost surely, 2^{201203200120997} is an apocalyptic number.

It is an amenable number.

201203200120997 is a deficient number, since it is larger than the sum of its proper divisors (1).

201203200120997 is an equidigital number, since it uses as much as digits as its factorization.

201203200120997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 201203200120997 in words is "two hundred one trillion, two hundred three billion, two hundred million, one hundred twenty thousand, nine hundred ninety-seven".