210001140281 has 2 divisors, whose sum is σ = 210001140282. Its totient is φ = 210001140280.

The previous prime is 210001140203. The next prime is 210001140337. The reversal of 210001140281 is 182041100012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204629569600 + 5371570681 = 452360^2 + 73291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210001140281 is a prime.

It is a super-2 number, since 2×210001140281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210001140581) 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, 105000570140 + 105000570141.

It is an arithmetic number, because the mean of its divisors is an integer number (105000570141).

Almost surely, 2^210001140281 is an apocalyptic number.

It is an amenable number.

210001140281 is a deficient number, since it is larger than the sum of its proper divisors (1).

210001140281 is an equidigital number, since it uses as much as digits as its factorization.

210001140281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 210001140281 its reverse (182041100012), we get a palindrome (392042240293).

The spelling of 210001140281 in words is "two hundred ten billion, one million, one hundred forty thousand, two hundred eighty-one".