100111001443 has 4 divisors (see below), whose sum is σ = 100397852800. Its totient is φ = 99824150088.

The previous prime is 100111001383. The next prime is 100111001447. The reversal of 100111001443 is 344100111001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100111001443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100111001447) 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, 143425155 + ... + 143425852.

It is an arithmetic number, because the mean of its divisors is an integer number (25099463200).

Almost surely, 2^100111001443 is an apocalyptic number.

100111001443 is a deficient number, since it is larger than the sum of its proper divisors (286851357).

100111001443 is an equidigital number, since it uses as much as digits as its factorization.

100111001443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286851356.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 100111001443 its reverse (344100111001), we get a palindrome (444211112444).

The spelling of 100111001443 in words is "one hundred billion, one hundred eleven million, one thousand, four hundred forty-three".