10543477121 has 4 divisors (see below), whose sum is σ = 10544975700. Its totient is φ = 10541978544.

The previous prime is 10543477111. The next prime is 10543477159. The reversal of 10543477121 is 12177434501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12177434501 = 479 ⋅25422619.

It can be written as a sum of positive squares in 2 ways, for example, as 2156580721 + 8386896400 = 46439^2 + 91580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10543477121 is a prime.

It is a super-2 number, since 2×10543477121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10543477111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 738686 + ... + 752823.

It is an arithmetic number, because the mean of its divisors is an integer number (2636243925).

Almost surely, 2^10543477121 is an apocalyptic number.

It is an amenable number.

10543477121 is a deficient number, since it is larger than the sum of its proper divisors (1498579).

10543477121 is an equidigital number, since it uses as much as digits as its factorization.

10543477121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498578.

The product of its (nonzero) digits is 23520, while the sum is 35.

The spelling of 10543477121 in words is "ten billion, five hundred forty-three million, four hundred seventy-seven thousand, one hundred twenty-one".