1004031213100 has 72 divisors (see below), whose sum is σ = 2202125648688. Its totient is φ = 397309728000.

The previous prime is 1004031213079. The next prime is 1004031213131. The reversal of 1004031213100 is 13121304001.

It is a super-2 number, since 2×1004031213100² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12453519 + ... + 12533881.

It is an arithmetic number, because the mean of its divisors is an integer number (30585078454).

Almost surely, 2^{1004031213100} is an apocalyptic number.

1004031213100 is a gapful number since it is divisible by the number (10) 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 1004031213100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1101062824344).

1004031213100 is an abundant number, since it is smaller than the sum of its proper divisors (1198094435588).

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

1004031213100 is a wasteful number, since it uses less digits than its factorization.

1004031213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81715 (or 81708 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1004031213100 its reverse (13121304001), we get a palindrome (1017152517101).

Subtracting from 1004031213100 its reverse (13121304001), we obtain a palindrome (990909909099).

The spelling of 1004031213100 in words is "one trillion, four billion, thirty-one million, two hundred thirteen thousand, one hundred".