100003111 has 4 divisors (see below), whose sum is σ = 107695672.
Its totient is φ = 92310552.
The previous prime is 100003091. The next prime is 100003151. The reversal of 100003111 is 111300001.
It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 100003111 - 213 = 99994919 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 100003094 and 100003103.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (100003151) 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, 3846261 + ... + 3846286.
It is an arithmetic number, because the mean of its divisors is an integer number (26923918).
Almost surely, 2100003111 is an apocalyptic number.
100003111 is a deficient number, since it is larger than the sum of its proper divisors (7692561).
100003111 is an equidigital number, since it uses as much as digits as its factorization.
100003111 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7692560.
The product of its (nonzero) digits is 3, while the sum is 7.
The square root of 100003111 is about 10000.1555487902.
The cubic root of 100003111 is about 464.1636966390.
Adding to 100003111 its reverse (111300001), we get a palindrome (211303112).
The spelling of 100003111 in words is "one hundred million, three thousand, one hundred eleven".