11003113123 has 32 divisors (see below), whose sum is σ = 12256624640. Its totient is φ = 9837067680.

The previous prime is 11003113081. The next prime is 11003113139. The reversal of 11003113123 is 32131130011.

It is a cyclic number.

It is not a de Polignac number, because 11003113123 - 2³³ = 2413178531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11003113097 and 11003113106.

It is not an unprimeable number, because it can be changed into a prime (11003113193) 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 31 ways as a sum of consecutive naturals, for example, 4063336 + ... + 4066042.

It is an arithmetic number, because the mean of its divisors is an integer number (383019520).

Almost surely, 2^11003113123 is an apocalyptic number.

11003113123 is a deficient number, since it is larger than the sum of its proper divisors (1253511517).

11003113123 is a wasteful number, since it uses less digits than its factorization.

11003113123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2927.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11003113123 its reverse (32131130011), we get a palindrome (43134243134).

The spelling of 11003113123 in words is "eleven billion, three million, one hundred thirteen thousand, one hundred twenty-three".