201053121361 has 2 divisors, whose sum is σ = 201053121362. Its totient is φ = 201053121360.

The previous prime is 201053121319. The next prime is 201053121443. The reversal of 201053121361 is 163121350102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164648481361 + 36404640000 = 405769^2 + 190800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201053121361 is a prime.

It is not a weakly prime, because it can be changed into another prime (201053121461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100526560680 + 100526560681.

It is an arithmetic number, because the mean of its divisors is an integer number (100526560681).

Almost surely, 2^201053121361 is an apocalyptic number.

It is an amenable number.

201053121361 is a deficient number, since it is larger than the sum of its proper divisors (1).

201053121361 is an equidigital number, since it uses as much as digits as its factorization.

201053121361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 201053121361 its reverse (163121350102), we get a palindrome (364174471463).

The spelling of 201053121361 in words is "two hundred one billion, fifty-three million, one hundred twenty-one thousand, three hundred sixty-one".