10440043402001 has 8 divisors (see below), whose sum is σ = 10481596353960. Its totient is φ = 10398568632192.

The previous prime is 10440043401959. The next prime is 10440043402021. The reversal of 10440043402001 is 10020434004401.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5696145955600 + 4743897446401 = 2386660^2 + 2178049^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10440043402001 - 2¹⁰ = 10440043400977 is a prime.

It is a super-2 number, since 2×10440043402001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10440043402021) 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 7 ways as a sum of consecutive naturals, for example, 19277930 + ... + 19812083.

It is an arithmetic number, because the mean of its divisors is an integer number (1310199544245).

Almost surely, 2^{10440043402001} is an apocalyptic number.

It is an amenable number.

10440043402001 is a deficient number, since it is larger than the sum of its proper divisors (41552951959).

10440043402001 is an equidigital number, since it uses as much as digits as its factorization.

10440043402001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39091075.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10440043402001 its reverse (10020434004401), we get a palindrome (20460477406402).

The spelling of 10440043402001 in words is "ten trillion, four hundred forty billion, forty-three million, four hundred two thousand, one".