100103681 has 8 divisors (see below), whose sum is σ = 104790528. Its totient is φ = 95508000.

The previous prime is 100103651. The next prime is 100103683. The reversal of 100103681 is 186301001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100103681 - 2⁶ = 100103617 is a prime.

It is a super-2 number, since 2×100103681² = 20041493899499522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100103683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20540 + ... + 24941.

It is an arithmetic number, because the mean of its divisors is an integer number (13098816).

Almost surely, 2^100103681 is an apocalyptic number.

It is an amenable number.

100103681 is a deficient number, since it is larger than the sum of its proper divisors (4686847).

100103681 is an equidigital number, since it uses as much as digits as its factorization.

100103681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45583.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 100103681 is about 10005.1827069774. The cubic root of 100103681 is about 464.3192428106.

Adding to 100103681 its reverse (186301001), we get a palindrome (286404682).

The spelling of 100103681 in words is "one hundred million, one hundred three thousand, six hundred eighty-one".