100440403243043 has 4 divisors (see below), whose sum is σ = 100517487206928. Its totient is φ = 100363319279160.

The previous prime is 100440403243027. The next prime is 100440403243057. The reversal of 100440403243043 is 340342304044001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100440403243043 - 2⁴ = 100440403243027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100440403243343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38541979988 + ... + 38541982593.

It is an arithmetic number, because the mean of its divisors is an integer number (25129371801732).

Almost surely, 2^{100440403243043} is an apocalyptic number.

100440403243043 is a deficient number, since it is larger than the sum of its proper divisors (77083963885).

100440403243043 is an equidigital number, since it uses as much as digits as its factorization.

100440403243043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77083963884.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 100440403243043 its reverse (340342304044001), we get a palindrome (440782707287044).

The spelling of 100440403243043 in words is "one hundred trillion, four hundred forty billion, four hundred three million, two hundred forty-three thousand, forty-three".