11031121303 has 4 divisors (see below), whose sum is σ = 11035976688. Its totient is φ = 11026265920.

The previous prime is 11031121261. The next prime is 11031121337. The reversal of 11031121303 is 30312113011.

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 11031121303 - 2²⁹ = 10494250391 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 (11031121363) 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, 2424283 + ... + 2428828.

It is an arithmetic number, because the mean of its divisors is an integer number (2758994172).

Almost surely, 2^11031121303 is an apocalyptic number.

11031121303 is a deficient number, since it is larger than the sum of its proper divisors (4855385).

11031121303 is an equidigital number, since it uses as much as digits as its factorization.

11031121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4855384.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11031121303 its reverse (30312113011), we get a palindrome (41343234314).

The spelling of 11031121303 in words is "eleven billion, thirty-one million, one hundred twenty-one thousand, three hundred three".