13111131133 has 4 divisors (see below), whose sum is σ = 13197959968. Its totient is φ = 13024302300.

The previous prime is 13111131113. The next prime is 13111131157. The reversal of 13111131133 is 33113111131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33113111131 = 389 ⋅85123679.

It is a cyclic number.

It is not a de Polignac number, because 13111131133 - 2⁹ = 13111130621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13111131133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111131113) 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, 43414191 + ... + 43414492.

It is an arithmetic number, because the mean of its divisors is an integer number (3299489992).

Almost surely, 2^13111131133 is an apocalyptic number.

It is an amenable number.

13111131133 is a deficient number, since it is larger than the sum of its proper divisors (86828835).

13111131133 is an equidigital number, since it uses as much as digits as its factorization.

13111131133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86828834.

The product of its digits is 81, while the sum is 19.

Adding to 13111131133 its reverse (33113111131), we get a palindrome (46224242264).

The spelling of 13111131133 in words is "thirteen billion, one hundred eleven million, one hundred thirty-one thousand, one hundred thirty-three".