1143543114261 has 12 divisors (see below), whose sum is σ = 1651793877292. Its totient is φ = 762357747456.

The previous prime is 1143543114223. The next prime is 1143543114269. The reversal of 1143543114261 is 1624113453411.

1143543114261 is a `hidden beast` number, since 1 + 1 + 4 + 3 + 543 + 11 + 42 + 61 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 346997574225 + 796545540036 = 589065^2 + 892494^2 .

It is not a de Polignac number, because 1143543114261 - 2¹¹ = 1143543112213 is a prime.

It is a super-2 number, since 2×1143543114261² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143543114269) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2540355 + ... + 2956431.

Almost surely, 2^{1143543114261} is an apocalyptic number.

It is an amenable number.

1143543114261 is a deficient number, since it is larger than the sum of its proper divisors (508250763031).

1143543114261 is a wasteful number, since it uses less digits than its factorization.

1143543114261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721460 (or 721457 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

Adding to 1143543114261 its reverse (1624113453411), we get a palindrome (2767656567672).

The spelling of 1143543114261 in words is "one trillion, one hundred forty-three billion, five hundred forty-three million, one hundred fourteen thousand, two hundred sixty-one".