1103403123 has 12 divisors (see below), whose sum is σ = 1594097128. Its totient is φ = 735467040.

The previous prime is 1103403121. The next prime is 1103403163. The reversal of 1103403123 is 3213043011.

1103403123 is a `hidden beast` number, since 1 + 10 + 340 + 312 + 3 = 666.

It is not a de Polignac number, because 1103403123 - 2¹ = 1103403121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103403096 and 1103403105.

It is not an unprimeable number, because it can be changed into a prime (1103403121) 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 11 ways as a sum of consecutive naturals, for example, 76536 + ... + 89802.

Almost surely, 2^1103403123 is an apocalyptic number.

1103403123 is a deficient number, since it is larger than the sum of its proper divisors (490694005).

1103403123 is a wasteful number, since it uses less digits than its factorization.

1103403123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22514 (or 22511 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1103403123 is about 33217.5122939693. The cubic root of 1103403123 is about 1033.3435577784.

Adding to 1103403123 its reverse (3213043011), we get a palindrome (4316446134).

The spelling of 1103403123 in words is "one billion, one hundred three million, four hundred three thousand, one hundred twenty-three".