11123220003 has 64 divisors (see below), whose sum is σ = 19007447040. Its totient is φ = 5636454912.

The previous prime is 11123220001. The next prime is 11123220013. The reversal of 11123220003 is 30002232111.

It is not a de Polignac number, because 11123220003 - 2¹ = 11123220001 is a prime.

It is a super-3 number, since 3×11123220003³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11123220001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 540028 + ... + 560246.

It is an arithmetic number, because the mean of its divisors is an integer number (296991360).

Almost surely, 2^11123220003 is an apocalyptic number.

11123220003 is a deficient number, since it is larger than the sum of its proper divisors (7884227037).

11123220003 is a wasteful number, since it uses less digits than its factorization.

11123220003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20336.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11123220003 its reverse (30002232111), we get a palindrome (41125452114).

The spelling of 11123220003 in words is "eleven billion, one hundred twenty-three million, two hundred twenty thousand, three".