11331320032013 has 2 divisors, whose sum is σ = 11331320032014. Its totient is φ = 11331320032012.

The previous prime is 11331320032003. The next prime is 11331320032099. The reversal of 11331320032013 is 31023002313311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10161316533124 + 1170003498889 = 3187682^2 + 1081667^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331320032013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11331320032013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331320032003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665660016006 + 5665660016007.

It is an arithmetic number, because the mean of its divisors is an integer number (5665660016007).

Almost surely, 2^{11331320032013} is an apocalyptic number.

It is an amenable number.

11331320032013 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331320032013 is an equidigital number, since it uses as much as digits as its factorization.

11331320032013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 11331320032013 its reverse (31023002313311), we get a palindrome (42354322345324).

The spelling of 11331320032013 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty million, thirty-two thousand, thirteen".