100028036881 has 2 divisors, whose sum is σ = 100028036882. Its totient is φ = 100028036880.

The previous prime is 100028036813. The next prime is 100028036917. The reversal of 100028036881 is 188630820001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97568769600 + 2459267281 = 312360^2 + 49591^2 .

It is a cyclic number.

It is not a de Polignac number, because 100028036881 - 2²¹ = 100025939729 is a prime.

It is a super-2 number, since 2×100028036881² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100028036881.

It is not a weakly prime, because it can be changed into another prime (100028076881) 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 as a sum of consecutive naturals, namely, 50014018440 + 50014018441.

It is an arithmetic number, because the mean of its divisors is an integer number (50014018441).

Almost surely, 2^100028036881 is an apocalyptic number.

It is an amenable number.

100028036881 is a deficient number, since it is larger than the sum of its proper divisors (1).

100028036881 is an equidigital number, since it uses as much as digits as its factorization.

100028036881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 37.

Adding to 100028036881 its reverse (188630820001), we get a palindrome (288658856882).

The spelling of 100028036881 in words is "one hundred billion, twenty-eight million, thirty-six thousand, eight hundred eighty-one".