11322013231213 has 4 divisors (see below), whose sum is σ = 11325232459420. Its totient is φ = 11318794003008.

The previous prime is 11322013231189. The next prime is 11322013231229. The reversal of 11322013231213 is 31213231022311.

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 9385234442089 + 1936778789124 = 3063533^2 + 1391682^2 .

It is a cyclic number.

It is not a de Polignac number, because 11322013231213 - 2¹³ = 11322013223021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11322013231013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609608828 + ... + 1609615861.

It is an arithmetic number, because the mean of its divisors is an integer number (2831308114855).

Almost surely, 2^{11322013231213} is an apocalyptic number.

It is an amenable number.

11322013231213 is a deficient number, since it is larger than the sum of its proper divisors (3219228207).

11322013231213 is an equidigital number, since it uses as much as digits as its factorization.

11322013231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219228206.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 11322013231213 its reverse (31213231022311), we get a palindrome (42535244253524).

The spelling of 11322013231213 in words is "eleven trillion, three hundred twenty-two billion, thirteen million, two hundred thirty-one thousand, two hundred thirteen".