1103203123 has 8 divisors (see below), whose sum is σ = 1244994480. Its totient is φ = 968328480.

The previous prime is 1103203121. The next prime is 1103203133. The reversal of 1103203123 is 3213023011.

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 1103203123 - 2¹ = 1103203121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103203097 and 1103203106.

It is not an unprimeable number, because it can be changed into a prime (1103203121) 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, 1728840 + ... + 1729477.

It is an arithmetic number, because the mean of its divisors is an integer number (155624310).

Almost surely, 2^1103203123 is an apocalyptic number.

1103203123 is a deficient number, since it is larger than the sum of its proper divisors (141791357).

1103203123 is a wasteful number, since it uses less digits than its factorization.

1103203123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3458357.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1103203123 is about 33214.5016973008. The cubic root of 1103203123 is about 1033.2811202777.

Adding to 1103203123 its reverse (3213023011), we get a palindrome (4316226134).

The spelling of 1103203123 in words is "one billion, one hundred three million, two hundred three thousand, one hundred twenty-three".