201010001281 has 2 divisors, whose sum is σ = 201010001282. Its totient is φ = 201010001280.

The previous prime is 201010001173. The next prime is 201010001287. The reversal of 201010001281 is 182100010102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185123667600 + 15886333681 = 430260^2 + 126041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201010001281 is a prime.

It is a super-2 number, since 2×201010001281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (201010001287) 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, 100505000640 + 100505000641.

It is an arithmetic number, because the mean of its divisors is an integer number (100505000641).

Almost surely, 2^201010001281 is an apocalyptic number.

It is an amenable number.

201010001281 is a deficient number, since it is larger than the sum of its proper divisors (1).

201010001281 is an equidigital number, since it uses as much as digits as its factorization.

201010001281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 201010001281 its reverse (182100010102), we get a palindrome (383110011383).

The spelling of 201010001281 in words is "two hundred one billion, ten million, one thousand, two hundred eighty-one".