10501001281 has 2 divisors, whose sum is σ = 10501001282. Its totient is φ = 10501001280.

The previous prime is 10501001261. The next prime is 10501001333. The reversal of 10501001281 is 18210010501.

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., 7729926400 + 2771074881 = 87920^2 + 52641^2 .

It is a cyclic number.

It is not a de Polignac number, because 10501001281 - 2¹³ = 10500993089 is a prime.

It is a super-2 number, since 2×10501001281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10501001261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250500640 + 5250500641.

It is an arithmetic number, because the mean of its divisors is an integer number (5250500641).

Almost surely, 2^10501001281 is an apocalyptic number.

It is an amenable number.

10501001281 is a deficient number, since it is larger than the sum of its proper divisors (1).

10501001281 is an equidigital number, since it uses as much as digits as its factorization.

10501001281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 10501001281 its reverse (18210010501), we get a palindrome (28711011782).

The spelling of 10501001281 in words is "ten billion, five hundred one million, one thousand, two hundred eighty-one".