11320221312013 has 4 divisors (see below), whose sum is σ = 11331396260028. Its totient is φ = 11309046364000.

The previous prime is 11320221312011. The next prime is 11320221312017. The reversal of 11320221312013 is 31021312202311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4299825254404 + 7020396057609 = 2073602^2 + 2649603^2 .

It is a cyclic number.

It is not a de Polignac number, because 11320221312013 - 2¹ = 11320221312011 is a prime.

It is a super-2 number, since 2×11320221312013² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11320221312011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5587472488 + ... + 5587474513.

It is an arithmetic number, because the mean of its divisors is an integer number (2832849065007).

Almost surely, 2^{11320221312013} is an apocalyptic number.

It is an amenable number.

11320221312013 is a deficient number, since it is larger than the sum of its proper divisors (11174948015).

11320221312013 is a wasteful number, since it uses less digits than its factorization.

11320221312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11174948014.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11320221312013 its reverse (31021312202311), we get a palindrome (42341533514324).

The spelling of 11320221312013 in words is "eleven trillion, three hundred twenty billion, two hundred twenty-one million, three hundred twelve thousand, thirteen".