10543121 has 2 divisors, whose sum is σ = 10543122. Its totient is φ = 10543120.

The previous prime is 10543097. The next prime is 10543133. The reversal of 10543121 is 12134501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7230721 + 3312400 = 2689^2 + 1820^2 .

It is a cyclic number.

It is not a de Polignac number, because 10543121 - 2¹⁰ = 10542097 is a prime.

It is a super-2 number, since 2×10543121² = 222314800841282, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10543121.

It is not a weakly prime, because it can be changed into another prime (10543151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5271560 + 5271561.

It is an arithmetic number, because the mean of its divisors is an integer number (5271561).

Almost surely, 2^10543121 is an apocalyptic number.

It is an amenable number.

10543121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10543121 is an equidigital number, since it uses as much as digits as its factorization.

10543121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 10543121 is about 3247.0172466434. The cubic root of 10543121 is about 219.2753082855.

Adding to 10543121 its reverse (12134501), we get a palindrome (22677622).

The spelling of 10543121 in words is "ten million, five hundred forty-three thousand, one hundred twenty-one".