100011028 has 12 divisors (see below), whose sum is σ = 188482420. Its totient is φ = 46158912.

The previous prime is 100010993. The next prime is 100011029. The reversal of 100011028 is 820110001.

It can be written as a sum of positive squares in 2 ways, for example, as 34433424 + 65577604 = 5868^2 + 8098^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 100010999 and 100011017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100011029) 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, 961593 + ... + 961696.

Almost surely, 2^100011028 is an apocalyptic number.

It is an amenable number.

100011028 is a deficient number, since it is larger than the sum of its proper divisors (88471392).

100011028 is a wasteful number, since it uses less digits than its factorization.

100011028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923306 (or 1923304 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 100011028 is about 10000.5513847987. The cubic root of 100011028 is about 464.1759452147.

Adding to 100011028 its reverse (820110001), we get a palindrome (920121029).

The spelling of 100011028 in words is "one hundred million, eleven thousand, twenty-eight".