1003040123 has 4 divisors (see below), whose sum is σ = 1035396288. Its totient is φ = 970683960.

The previous prime is 1003040119. The next prime is 1003040167. The reversal of 1003040123 is 3210403001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1003040123 - 2² = 1003040119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1003040098 and 1003040107.

It is not an unprimeable number, because it can be changed into a prime (1003040173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16178036 + ... + 16178097.

It is an arithmetic number, because the mean of its divisors is an integer number (258849072).

Almost surely, 2^1003040123 is an apocalyptic number.

1003040123 is a deficient number, since it is larger than the sum of its proper divisors (32356165).

1003040123 is an equidigital number, since it uses as much as digits as its factorization.

1003040123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32356164.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1003040123 is about 31670.8086887594. The cubic root of 1003040123 is about 1001.0123491367.

Adding to 1003040123 its reverse (3210403001), we get a palindrome (4213443124).

The spelling of 1003040123 in words is "one billion, three million, forty thousand, one hundred twenty-three".