11213012303 has 4 divisors (see below), whose sum is σ = 11872601280. Its totient is φ = 10553423328.

The previous prime is 11213012297. The next prime is 11213012329. The reversal of 11213012303 is 30321031211.

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 11213012303 - 2⁸ = 11213012047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 659588959 = 11213012303 / (1 + 1 + 2 + 1 + 3 + 0 + 1 + 2 + 3 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11213012383) 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, 329794463 + ... + 329794496.

It is an arithmetic number, because the mean of its divisors is an integer number (2968150320).

Almost surely, 2^11213012303 is an apocalyptic number.

11213012303 is a deficient number, since it is larger than the sum of its proper divisors (659588977).

11213012303 is an equidigital number, since it uses as much as digits as its factorization.

11213012303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659588976.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11213012303 its reverse (30321031211), we get a palindrome (41534043514).

The spelling of 11213012303 in words is "eleven billion, two hundred thirteen million, twelve thousand, three hundred three".