1004002031004 has 192 divisors, whose sum is σ = 2712583050240. Its totient is φ = 283116072960.

The previous prime is 1004002031003. The next prime is 1004002031057. The reversal of 1004002031004 is 4001302004001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004002031003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2318711172 + ... + 2318711604.

It is an arithmetic number, because the mean of its divisors is an integer number (14128036720).

Almost surely, 2^{1004002031004} is an apocalyptic number.

1004002031004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1004002031004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1356291525120).

1004002031004 is an abundant number, since it is smaller than the sum of its proper divisors (1708581019236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1004002031004 is a wasteful number, since it uses less digits than its factorization.

1004002031004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420 (or 1418 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 1004002031004 its reverse (4001302004001), we get a palindrome (5005304035005).

The spelling of 1004002031004 in words is "one trillion, four billion, two million, thirty-one thousand, four".