11012003 has 4 divisors (see below), whose sum is σ = 11027568. Its totient is φ = 10996440.

The previous prime is 11011993. The next prime is 11012011. The reversal of 11012003 is 30021011.

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 11012003 - 2⁶ = 11011939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012033) 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, 6668 + ... + 8153.

It is an arithmetic number, because the mean of its divisors is an integer number (2756892).

Almost surely, 2^11012003 is an apocalyptic number.

11012003 is a deficient number, since it is larger than the sum of its proper divisors (15565).

11012003 is an equidigital number, since it uses as much as digits as its factorization.

11012003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15564.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 11012003 is about 3318.4338173301. The cubic root of 11012003 is about 222.4788718733.

Adding to 11012003 its reverse (30021011), we get a palindrome (41033014).

The spelling of 11012003 in words is "eleven million, twelve thousand, three".