113311311213 has 4 divisors (see below), whose sum is σ = 151081748288. Its totient is φ = 75540874140.

The previous prime is 113311311193. The next prime is 113311311247. The reversal of 113311311213 is 312113113311.

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: 312113113311 = 3 ⋅104037704437.

It is not a de Polignac number, because 113311311213 - 2¹⁷ = 113311180141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 113311311213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113311311283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18885218533 + ... + 18885218538.

It is an arithmetic number, because the mean of its divisors is an integer number (37770437072).

Almost surely, 2^113311311213 is an apocalyptic number.

It is an amenable number.

113311311213 is a deficient number, since it is larger than the sum of its proper divisors (37770437075).

113311311213 is an equidigital number, since it uses as much as digits as its factorization.

113311311213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37770437074.

The product of its digits is 162, while the sum is 21.

Adding to 113311311213 its reverse (312113113311), we get a palindrome (425424424524).

The spelling of 113311311213 in words is "one hundred thirteen billion, three hundred eleven million, three hundred eleven thousand, two hundred thirteen".