100111211443 has 2 divisors, whose sum is σ = 100111211444. Its totient is φ = 100111211442.

The previous prime is 100111211407. The next prime is 100111211471. The reversal of 100111211443 is 344112111001.

It is a strong prime.

It is an emirp because it is prime and its reverse (344112111001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100111211443 - 2²⁵ = 100077657011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100111211443.

It is not a weakly prime, because it can be changed into another prime (100111511443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50055605721 + 50055605722.

It is an arithmetic number, because the mean of its divisors is an integer number (50055605722).

Almost surely, 2^100111211443 is an apocalyptic number.

100111211443 is a deficient number, since it is larger than the sum of its proper divisors (1).

100111211443 is an equidigital number, since it uses as much as digits as its factorization.

100111211443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 100111211443 its reverse (344112111001), we get a palindrome (444223322444).

The spelling of 100111211443 in words is "one hundred billion, one hundred eleven million, two hundred eleven thousand, four hundred forty-three".