11311301221203 has 8 divisors (see below), whose sum is σ = 15082547935888. Its totient is φ = 7540460993664.

The previous prime is 11311301221151. The next prime is 11311301221217. The reversal of 11311301221203 is 30212210311311.

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

It is not a de Polignac number, because 11311301221203 - 2¹³ = 11311301213011 is a prime.

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 11311301221203.

It is not an unprimeable number, because it can be changed into a prime (11311301221223) 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, 101556850 + ... + 101668167.

It is an arithmetic number, because the mean of its divisors is an integer number (1885318491986).

Almost surely, 2^{11311301221203} is an apocalyptic number.

11311301221203 is a deficient number, since it is larger than the sum of its proper divisors (3771246714685).

11311301221203 is a wasteful number, since it uses less digits than its factorization.

11311301221203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203243573.

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

Adding to 11311301221203 its reverse (30212210311311), we get a palindrome (41523511532514).

The spelling of 11311301221203 in words is "eleven trillion, three hundred eleven billion, three hundred one million, two hundred twenty-one thousand, two hundred three".