1000043440100 has 18 divisors (see below), whose sum is σ = 2170094265234. Its totient is φ = 400017376000.

The previous prime is 1000043440091. The next prime is 1000043440103. The reversal of 1000043440100 is 10443400001.

It can be written as a sum of positive squares in 3 ways, for example, as 1051186084 + 998992254016 = 32422^2 + 999496^2 .

It is not an unprimeable number, because it can be changed into a prime (1000043440103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5000217101 + ... + 5000217300.

It is an arithmetic number, because the mean of its divisors is an integer number (120560792513).

Almost surely, 2^{1000043440100} is an apocalyptic number.

1000043440100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000043440100 is an abundant number, since it is smaller than the sum of its proper divisors (1170050825134).

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

1000043440100 is a wasteful number, since it uses less digits than its factorization.

1000043440100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10000434415 (or 10000434408 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1000043440100 its reverse (10443400001), we get a palindrome (1010486840101).

The spelling of 1000043440100 in words is "one trillion, forty-three million, four hundred forty thousand, one hundred".