11111231302203 has 8 divisors (see below), whose sum is σ = 15057843513616. Its totient is φ = 7286053312800.

The previous prime is 11111231302201. The next prime is 11111231302273. The reversal of 11111231302203 is 30220313211111.

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

It is not a de Polignac number, because 11111231302203 - 2¹ = 11111231302201 is a prime.

It is a super-2 number, since 2×11111231302203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11111231302203.

It is not an unprimeable number, because it can be changed into a prime (11111231302201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30358555288 + ... + 30358555653.

It is an arithmetic number, because the mean of its divisors is an integer number (1882230439202).

Almost surely, 2^{11111231302203} is an apocalyptic number.

11111231302203 is a deficient number, since it is larger than the sum of its proper divisors (3946612211413).

11111231302203 is an equidigital number, since it uses as much as digits as its factorization.

11111231302203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60717111005.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11111231302203 its reverse (30220313211111), we get a palindrome (41331544513314).

The spelling of 11111231302203 in words is "eleven trillion, one hundred eleven billion, two hundred thirty-one million, three hundred two thousand, two hundred three".