1123517903 has 8 divisors (see below), whose sum is σ = 1181644416. Its totient is φ = 1066759200.

The previous prime is 1123517893. The next prime is 1123517909. The reversal of 1123517903 is 3097153211.

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 1123517903 - 2¹⁸ = 1123255759 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 1123517903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123517909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 340268 + ... + 343553.

It is an arithmetic number, because the mean of its divisors is an integer number (147705552).

Almost surely, 2^1123517903 is an apocalyptic number.

1123517903 is a deficient number, since it is larger than the sum of its proper divisors (58126513).

1123517903 is an equidigital number, since it uses as much as digits as its factorization.

1123517903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683905.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 1123517903 is about 33518.9185833911. The cubic root of 1123517903 is about 1039.5849869624.

The spelling of 1123517903 in words is "one billion, one hundred twenty-three million, five hundred seventeen thousand, nine hundred three".