11003012311 has 8 divisors (see below), whose sum is σ = 11544146048. Its totient is φ = 10473516000.

The previous prime is 11003012291. The next prime is 11003012327. The reversal of 11003012311 is 11321030011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11003012311 - 2¹⁵ = 11002979543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11003012291 and 11003012300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003612311) 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 7 ways as a sum of consecutive naturals, for example, 2907420 + ... + 2911201.

It is an arithmetic number, because the mean of its divisors is an integer number (1443018256).

Almost surely, 2^11003012311 is an apocalyptic number.

11003012311 is a deficient number, since it is larger than the sum of its proper divisors (541133737).

11003012311 is an equidigital number, since it uses as much as digits as its factorization.

11003012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5818713.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11003012311 its reverse (11321030011), we get a palindrome (22324042322).

The spelling of 11003012311 in words is "eleven billion, three million, twelve thousand, three hundred eleven".