11031001103 has 4 divisors (see below), whose sum is σ = 11043110688. Its totient is φ = 11018891520.

The previous prime is 11031001081. The next prime is 11031001129. The reversal of 11031001103 is 30110013011.

It is a happy number.

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 11031001103 - 2¹⁴ = 11030984719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031009103) 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 3 ways as a sum of consecutive naturals, for example, 6053426 + ... + 6055247.

It is an arithmetic number, because the mean of its divisors is an integer number (2760777672).

Almost surely, 2^11031001103 is an apocalyptic number.

11031001103 is a deficient number, since it is larger than the sum of its proper divisors (12109585).

11031001103 is an equidigital number, since it uses as much as digits as its factorization.

11031001103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12109584.

The product of its (nonzero) digits is 9, while the sum is 11.

Adding to 11031001103 its reverse (30110013011), we get a palindrome (41141014114).

The spelling of 11031001103 in words is "eleven billion, thirty-one million, one thousand, one hundred three".