201020109999953 has 2 divisors, whose sum is σ = 201020109999954. Its totient is φ = 201020109999952.

The previous prime is 201020109999937. The next prime is 201020110000079. The reversal of 201020109999953 is 359999901020102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112429716410944 + 88590393589009 = 10603288^2 + 9412247^2 .

It is a cyclic number.

It is not a de Polignac number, because 201020109999953 - 2⁴ = 201020109999937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201020109999892 and 201020109999901.

It is not a weakly prime, because it can be changed into another prime (201020109999253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100510054999976 + 100510054999977.

It is an arithmetic number, because the mean of its divisors is an integer number (100510054999977).

Almost surely, 2^{201020109999953} is an apocalyptic number.

It is an amenable number.

201020109999953 is a deficient number, since it is larger than the sum of its proper divisors (1).

201020109999953 is an equidigital number, since it uses as much as digits as its factorization.

201020109999953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3542940, while the sum is 59.

The spelling of 201020109999953 in words is "two hundred one trillion, twenty billion, one hundred nine million, nine hundred ninety-nine thousand, nine hundred fifty-three".