1001543043055 has 16 divisors (see below), whose sum is σ = 1204117293600. Its totient is φ = 799724369920.

The previous prime is 1001543043037. The next prime is 1001543043073. The reversal of 1001543043055 is 5503403451001.

It is an interprime number because it is at equal distance from previous prime (1001543043037) and next prime (1001543043073).

It is not a de Polignac number, because 1001543043055 - 2¹⁵ = 1001543010287 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28828095 + ... + 28862815.

It is an arithmetic number, because the mean of its divisors is an integer number (75257330850).

Almost surely, 2^{1001543043055} is an apocalyptic number.

1001543043055 is a deficient number, since it is larger than the sum of its proper divisors (202574250545).

1001543043055 is a wasteful number, since it uses less digits than its factorization.

1001543043055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45434.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 1001543043055 its reverse (5503403451001), we get a palindrome (6504946494056).

The spelling of 1001543043055 in words is "one trillion, one billion, five hundred forty-three million, forty-three thousand, fifty-five".