11311320011213 has 4 divisors (see below), whose sum is σ = 11311334706048. Its totient is φ = 11311305316380.

The previous prime is 11311320011209. The next prime is 11311320011279. The reversal of 11311320011213 is 31211002311311.

11311320011213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11311320011213 - 2² = 11311320011209 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 (11311320011413) 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, 6125003 + ... + 7754888.

It is an arithmetic number, because the mean of its divisors is an integer number (2827833676512).

Almost surely, 2^{11311320011213} is an apocalyptic number.

It is an amenable number.

11311320011213 is a deficient number, since it is larger than the sum of its proper divisors (14694835).

11311320011213 is an equidigital number, since it uses as much as digits as its factorization.

11311320011213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14694834.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 11311320011213 its reverse (31211002311311), we get a palindrome (42522322322524).

The spelling of 11311320011213 in words is "eleven trillion, three hundred eleven billion, three hundred twenty million, eleven thousand, two hundred thirteen".