1001323443204 has 192 divisors, whose sum is σ = 3143737336320. Its totient is φ = 269063700480.

The previous prime is 1001323443191. The next prime is 1001323443227. The reversal of 1001323443204 is 4023443231001.

1001323443204 is a `hidden beast` number, since 1 + 0 + 0 + 13 + 2 + 3 + 443 + 204 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17720404 + ... + 17776820.

It is an arithmetic number, because the mean of its divisors is an integer number (16373631960).

Almost surely, 2^{1001323443204} is an apocalyptic number.

1001323443204 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 1001323443204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1571868668160).

1001323443204 is an abundant number, since it is smaller than the sum of its proper divisors (2142413893116).

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

1001323443204 is a wasteful number, since it uses less digits than its factorization.

1001323443204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57835 (or 57827 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1001323443204 its reverse (4023443231001), we get a palindrome (5024766674205).

The spelling of 1001323443204 in words is "one trillion, one billion, three hundred twenty-three million, four hundred forty-three thousand, two hundred four".