1000043305541 has 16 divisors (see below), whose sum is σ = 1153120316544. Its totient is φ = 849521025024.

The previous prime is 1000043305517. The next prime is 1000043305561. The reversal of 1000043305541 is 1455033400001.

It is not a de Polignac number, because 1000043305541 - 2¹⁸ = 1000043043397 is a prime.

It is a super-2 number, since 2×1000043305541² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1000043305541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000043305561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10382981 + ... + 10478853.

It is an arithmetic number, because the mean of its divisors is an integer number (72070019784).

Almost surely, 2^{1000043305541} is an apocalyptic number.

It is an amenable number.

1000043305541 is a deficient number, since it is larger than the sum of its proper divisors (153077011003).

1000043305541 is a wasteful number, since it uses less digits than its factorization.

1000043305541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109180.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 1000043305541 its reverse (1455033400001), we get a palindrome (2455076705542).

The spelling of 1000043305541 in words is "one trillion, forty-three million, three hundred five thousand, five hundred forty-one".