11311333452013 has 12 divisors (see below), whose sum is σ = 13158394280220. Its totient is φ = 9695198403072.

The previous prime is 11311333451989. The next prime is 11311333452019. The reversal of 11311333452013 is 31025433311311.

It can be written as a sum of positive squares in 2 ways, for example, as 6098025258724 + 5213308193289 = 2469418^2 + 2283267^2 .

It is not a de Polignac number, because 11311333452013 - 2³⁷ = 11173894498541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311333452019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640878 + ... + 4799311.

It is an arithmetic number, because the mean of its divisors is an integer number (1096532856685).

Almost surely, 2^{11311333452013} is an apocalyptic number.

It is an amenable number.

11311333452013 is a deficient number, since it is larger than the sum of its proper divisors (1847060828207).

11311333452013 is an equidigital number, since it uses as much as digits as its factorization.

11311333452013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482636 (or 5482629 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 11311333452013 its reverse (31025433311311), we get a palindrome (42336766763324).

The spelling of 11311333452013 in words is "eleven trillion, three hundred eleven billion, three hundred thirty-three million, four hundred fifty-two thousand, thirteen".