100105433401691 has 4 divisors (see below), whose sum is σ = 100105513878384. Its totient is φ = 100105352925000.

The previous prime is 100105433401637. The next prime is 100105433401747. The reversal of 100105433401691 is 196104334501001.

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 100105433401691 - 2⁴² = 95707386890587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100105433401621) 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, 38342720 + ... + 40870221.

It is an arithmetic number, because the mean of its divisors is an integer number (25026378469596).

Almost surely, 2^{100105433401691} is an apocalyptic number.

100105433401691 is a deficient number, since it is larger than the sum of its proper divisors (80476693).

100105433401691 is an equidigital number, since it uses as much as digits as its factorization.

100105433401691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80476692.

The product of its (nonzero) digits is 38880, while the sum is 38.

Adding to 100105433401691 its reverse (196104334501001), we get a palindrome (296209767902692).

The spelling of 100105433401691 in words is "one hundred trillion, one hundred five billion, four hundred thirty-three million, four hundred one thousand, six hundred ninety-one".