1100100403 has 8 divisors (see below), whose sum is σ = 1125051840. Its totient is φ = 1075400040.

The previous prime is 1100100389. The next prime is 1100100427. The reversal of 1100100403 is 3040010011.

It is a happy number.

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 1100100403 - 2¹³ = 1100092211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100100403.

It is not an unprimeable number, because it can be changed into a prime (1100100493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53893 + ... + 71446.

It is an arithmetic number, because the mean of its divisors is an integer number (140631480).

Almost surely, 2^1100100403 is an apocalyptic number.

1100100403 is a deficient number, since it is larger than the sum of its proper divisors (24951437).

1100100403 is a wasteful number, since it uses less digits than its factorization.

1100100403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125537.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1100100403 is about 33167.7615011927. The cubic root of 1100100403 is about 1032.3115217798.

Adding to 1100100403 its reverse (3040010011), we get a palindrome (4140110414).

The spelling of 1100100403 in words is "one billion, one hundred million, one hundred thousand, four hundred three".