100722803 has 2 divisors, whose sum is σ = 100722804. Its totient is φ = 100722802.

The previous prime is 100722799. The next prime is 100722821. The reversal of 100722803 is 308227001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100722803 - 2² = 100722799 is a prime.

It is not a weakly prime, because it can be changed into another prime (100722403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50361401 + 50361402.

It is an arithmetic number, because the mean of its divisors is an integer number (50361402).

Almost surely, 2^100722803 is an apocalyptic number.

100722803 is a deficient number, since it is larger than the sum of its proper divisors (1).

100722803 is an equidigital number, since it uses as much as digits as its factorization.

100722803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 100722803 is about 10036.0750794322. The cubic root of 100722803 is about 465.2745178280.

Adding to 100722803 its reverse (308227001), we get a palindrome (408949804).

The spelling of 100722803 in words is "one hundred million, seven hundred twenty-two thousand, eight hundred three".