103811603 has 16 divisors (see below), whose sum is σ = 122645760. Its totient is φ = 86010336.

The previous prime is 103811599. The next prime is 103811633. The reversal of 103811603 is 306118301.

It is a cyclic number.

It is not a de Polignac number, because 103811603 - 2² = 103811599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103811633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40988 + ... + 43446.

It is an arithmetic number, because the mean of its divisors is an integer number (7665360).

Almost surely, 2^103811603 is an apocalyptic number.

103811603 is a deficient number, since it is larger than the sum of its proper divisors (18834157).

103811603 is a wasteful number, since it uses less digits than its factorization.

103811603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2666.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 103811603 is about 10188.7979173208. The cubic root of 103811603 is about 469.9828015436.

Adding to 103811603 its reverse (306118301), we get a palindrome (409929904).

The spelling of 103811603 in words is "one hundred three million, eight hundred eleven thousand, six hundred three".