10543521061 has 4 divisors (see below), whose sum is σ = 10543733824. Its totient is φ = 10543308300.

The previous prime is 10543521049. The next prime is 10543521137. The reversal of 10543521061 is 16012534501.

10543521061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16012534501 = 31 ⋅516533371.

It is a cyclic number.

It is not a de Polignac number, because 10543521061 - 2²¹ = 10541423909 is a prime.

It is a super-2 number, since 2×10543521061² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10543521031) 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 in 3 ways as a sum of consecutive naturals, for example, 11476 + ... + 145666.

It is an arithmetic number, because the mean of its divisors is an integer number (2635933456).

Almost surely, 2^10543521061 is an apocalyptic number.

It is an amenable number.

10543521061 is a deficient number, since it is larger than the sum of its proper divisors (212763).

10543521061 is an equidigital number, since it uses as much as digits as its factorization.

10543521061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212762.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 10543521061 in words is "ten billion, five hundred forty-three million, five hundred twenty-one thousand, sixty-one".