1001404024243 has 16 divisors (see below), whose sum is σ = 1149092372736. Its totient is φ = 854876435040.

The previous prime is 1001404024237. The next prime is 1001404024267. The reversal of 1001404024243 is 3424204041001.

It is a cyclic number.

It is not a de Polignac number, because 1001404024243 - 2²¹ = 1001401927091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001404024043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3780408 + ... + 4036618.

It is an arithmetic number, because the mean of its divisors is an integer number (71818273296).

Almost surely, 2^{1001404024243} is an apocalyptic number.

1001404024243 is a deficient number, since it is larger than the sum of its proper divisors (147688348493).

1001404024243 is a wasteful number, since it uses less digits than its factorization.

1001404024243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258474.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1001404024243 its reverse (3424204041001), we get a palindrome (4425608065244).

The spelling of 1001404024243 in words is "one trillion, one billion, four hundred four million, twenty-four thousand, two hundred forty-three".