11123031003 has 16 divisors (see below), whose sum is σ = 17003890176. Its totient is φ = 6335576640.

The previous prime is 11123030969. The next prime is 11123031011. The reversal of 11123031003 is 30013032111.

It is not a de Polignac number, because 11123031003 - 2⁸ = 11123030747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11123031013) 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, 845026 + ... + 858087.

It is an arithmetic number, because the mean of its divisors is an integer number (1062743136).

Almost surely, 2^11123031003 is an apocalyptic number.

11123031003 is a deficient number, since it is larger than the sum of its proper divisors (5880859173).

11123031003 is a wasteful number, since it uses less digits than its factorization.

11123031003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703434.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 11123031003 its reverse (30013032111), we get a palindrome (41136063114).

The spelling of 11123031003 in words is "eleven billion, one hundred twenty-three million, thirty-one thousand, three".