106103049891 has 4 divisors (see below), whose sum is σ = 141470733192. Its totient is φ = 70735366592.

The previous prime is 106103049869. The next prime is 106103049919. The reversal of 106103049891 is 198940301601.

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 106103049891 - 2⁶ = 106103049827 is a prime.

It is a super-2 number, since 2×106103049891² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106103049851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17683841646 + ... + 17683841651.

It is an arithmetic number, because the mean of its divisors is an integer number (35367683298).

Almost surely, 2^106103049891 is an apocalyptic number.

106103049891 is a deficient number, since it is larger than the sum of its proper divisors (35367683301).

106103049891 is an equidigital number, since it uses as much as digits as its factorization.

106103049891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35367683300.

The product of its (nonzero) digits is 46656, while the sum is 42.

The spelling of 106103049891 in words is "one hundred six billion, one hundred three million, forty-nine thousand, eight hundred ninety-one".