1004120321043 has 64 divisors (see below), whose sum is σ = 1588182515712. Its totient is φ = 552529071360.

The previous prime is 1004120320981. The next prime is 1004120321047. The reversal of 1004120321043 is 3401230214001.

It is not a de Polignac number, because 1004120321043 - 2⁶ = 1004120320979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1004120321047) 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 63 ways as a sum of consecutive naturals, for example, 11166046 + ... + 11255612.

It is an arithmetic number, because the mean of its divisors is an integer number (24815351808).

Almost surely, 2^{1004120321043} is an apocalyptic number.

1004120321043 is a deficient number, since it is larger than the sum of its proper divisors (584062194669).

1004120321043 is a wasteful number, since it uses less digits than its factorization.

1004120321043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89824.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1004120321043 its reverse (3401230214001), we get a palindrome (4405350535044).

The spelling of 1004120321043 in words is "one trillion, four billion, one hundred twenty million, three hundred twenty-one thousand, forty-three".