100081003 has 8 divisors (see below), whose sum is σ = 109264896. Its totient is φ = 90911400.

The previous prime is 100080997. The next prime is 100081031. The reversal of 100081003 is 300180001.

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 100081003 - 2⁵ = 100080971 is a prime.

It is a super-2 number, since 2×100081003² = 20032414322972018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100081043) 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, 15558 + ... + 21028.

It is an arithmetic number, because the mean of its divisors is an integer number (13658112).

Almost surely, 2^100081003 is an apocalyptic number.

100081003 is a deficient number, since it is larger than the sum of its proper divisors (9183893).

100081003 is a wasteful number, since it uses less digits than its factorization.

100081003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7145.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 100081003 is about 10004.0493301463. The cubic root of 100081003 is about 464.2841770769.

It can be divided in two parts, 10008 and 1003, that added together give a palindrome (11011).

The spelling of 100081003 in words is "one hundred million, eighty-one thousand, three".