13111111022213 has 4 divisors (see below), whose sum is σ = 13111126201440. Its totient is φ = 13111095842988.

The previous prime is 13111111022179. The next prime is 13111111022281. The reversal of 13111111022213 is 31222011111131.

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 13111111022213 - 2²² = 13111106827909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111111021213) 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, 6210443 + ... + 8049336.

It is an arithmetic number, because the mean of its divisors is an integer number (3277781550360).

Almost surely, 2^{13111111022213} is an apocalyptic number.

It is an amenable number.

13111111022213 is a deficient number, since it is larger than the sum of its proper divisors (15179227).

13111111022213 is an equidigital number, since it uses as much as digits as its factorization.

13111111022213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15179226.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 13111111022213 its reverse (31222011111131), we get a palindrome (44333122133344).

The spelling of 13111111022213 in words is "thirteen trillion, one hundred eleven billion, one hundred eleven million, twenty-two thousand, two hundred thirteen".