10500001181 has 2 divisors, whose sum is σ = 10500001182. Its totient is φ = 10500001180.

The previous prime is 10500001163. The next prime is 10500001219. The reversal of 10500001181 is 18110000501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6335364025 + 4164637156 = 79595^2 + 64534^2 .

It is a cyclic number.

It is not a de Polignac number, because 10500001181 - 2¹⁰ = 10500000157 is a prime.

It is a super-2 number, since 2×10500001181² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10500001781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5250000590 + 5250000591.

It is an arithmetic number, because the mean of its divisors is an integer number (5250000591).

Almost surely, 2^10500001181 is an apocalyptic number.

It is an amenable number.

10500001181 is a deficient number, since it is larger than the sum of its proper divisors (1).

10500001181 is an equidigital number, since it uses as much as digits as its factorization.

10500001181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 10500001181 its reverse (18110000501), we get a palindrome (28610001682).

The spelling of 10500001181 in words is "ten billion, five hundred million, one thousand, one hundred eighty-one".