11004121003 has 4 divisors (see below), whose sum is σ = 11061137368. Its totient is φ = 10947104640.

The previous prime is 11004120991. The next prime is 11004121031. The reversal of 11004121003 is 30012140011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11004121003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11004121103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28507893 + ... + 28508278.

It is an arithmetic number, because the mean of its divisors is an integer number (2765284342).

Almost surely, 2^11004121003 is an apocalyptic number.

11004121003 is a deficient number, since it is larger than the sum of its proper divisors (57016365).

11004121003 is an equidigital number, since it uses as much as digits as its factorization.

11004121003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57016364.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11004121003 its reverse (30012140011), we get a palindrome (41016261014).

It can be divided in two parts, 110041 and 21003, that added together give a square (131044 = 362²).

The spelling of 11004121003 in words is "eleven billion, four million, one hundred twenty-one thousand, three".