100641011 has 4 divisors (see below), whose sum is σ = 102539952. Its totient is φ = 98742072.

The previous prime is 100641001. The next prime is 100641041. The reversal of 100641011 is 110146001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100641011 is a prime.

It is a super-2 number, since 2×100641011² = 20257226190204242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100641001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949391 + ... + 949496.

It is an arithmetic number, because the mean of its divisors is an integer number (25634988).

Almost surely, 2^100641011 is an apocalyptic number.

100641011 is a deficient number, since it is larger than the sum of its proper divisors (1898941).

100641011 is an equidigital number, since it uses as much as digits as its factorization.

100641011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898940.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 100641011 is about 10031.9993520733. Note that the first 3 decimals coincide. The cubic root of 100641011 is about 465.1485415911.

Adding to 100641011 its reverse (110146001), we get a palindrome (210787012).

The spelling of 100641011 in words is "one hundred million, six hundred forty-one thousand, eleven".