13111031323311 has 4 divisors (see below), whose sum is σ = 17481375097752. Its totient is φ = 8740687548872.

The previous prime is 13111031323303. The next prime is 13111031323337. The reversal of 13111031323311 is 11332313011131.

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

It is a cyclic number.

It is not a de Polignac number, because 13111031323311 - 2³ = 13111031323303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111031324311) 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, 2185171887216 + ... + 2185171887221.

It is an arithmetic number, because the mean of its divisors is an integer number (4370343774438).

Almost surely, 2^{13111031323311} is an apocalyptic number.

13111031323311 is a deficient number, since it is larger than the sum of its proper divisors (4370343774441).

13111031323311 is an equidigital number, since it uses as much as digits as its factorization.

13111031323311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4370343774440.

The product of its (nonzero) digits is 486, while the sum is 24.

Adding to 13111031323311 its reverse (11332313011131), we get a palindrome (24443344334442).

The spelling of 13111031323311 in words is "thirteen trillion, one hundred eleven billion, thirty-one million, three hundred twenty-three thousand, three hundred eleven".