100722103 has 4 divisors (see below), whose sum is σ = 103444360. Its totient is φ = 97999848.

The previous prime is 100722071. The next prime is 100722107. The reversal of 100722103 is 301227001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301227001 = 97 ⋅3105433.

It is a cyclic number.

It is not a de Polignac number, because 100722103 - 2⁵ = 100722071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100722107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361073 + ... + 1361146.

It is an arithmetic number, because the mean of its divisors is an integer number (25861090).

Almost surely, 2^100722103 is an apocalyptic number.

100722103 is a deficient number, since it is larger than the sum of its proper divisors (2722257).

100722103 is an equidigital number, since it uses as much as digits as its factorization.

100722103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2722256.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 100722103 is about 10036.0402051805. The cubic root of 100722103 is about 465.2734399757.

Adding to 100722103 its reverse (301227001), we get a palindrome (401949104).

The spelling of 100722103 in words is "one hundred million, seven hundred twenty-two thousand, one hundred three".