43440111001 has 4 divisors (see below), whose sum is σ = 49645841152. Its totient is φ = 37234380852.

The previous prime is 43440110983. The next prime is 43440111019. The reversal of 43440111001 is 10011104434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (43440110983) and next prime (43440111019).

It is a cyclic number.

It is not a de Polignac number, because 43440111001 - 2⁷ = 43440110873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43440111001.

It is not an unprimeable number, because it can be changed into a prime (43440111041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3102865065 + ... + 3102865078.

It is an arithmetic number, because the mean of its divisors is an integer number (12411460288).

Almost surely, 2^43440111001 is an apocalyptic number.

It is an amenable number.

43440111001 is a deficient number, since it is larger than the sum of its proper divisors (6205730151).

43440111001 is an equidigital number, since it uses as much as digits as its factorization.

43440111001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6205730150.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 43440111001 its reverse (10011104434), we get a palindrome (53451215435).

It can be divided in two parts, 43 and 440111001, that added together give a palindrome (440111044).

The spelling of 43440111001 in words is "forty-three billion, four hundred forty million, one hundred eleven thousand, one".