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11031310013 = 17648900589
BaseRepresentation
bin10100100011000010…
…00110111010111101
31001110210100121111112
422101201012322331
5140043003410023
65022343131405
7540236405453
oct122141067275
931423317445
1011031310013
114750983539
12217a443b65
13106a56a999
147691009d3
154486c6478
hex291846ebd

11031310013 has 4 divisors (see below), whose sum is σ = 11680210620. Its totient is φ = 10382409408.

The previous prime is 11031310009. The next prime is 11031310019. The reversal of 11031310013 is 31001313011.

It is a happy number.

11031310013 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.

It can be written as a sum of positive squares in 2 ways, for example, as 6805920004 + 4225390009 = 82498^2 + 65003^2 .

It is a cyclic number.

It is not a de Polignac number, because 11031310013 - 22 = 11031310009 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 11031310013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031310019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324450278 + ... + 324450311.

It is an arithmetic number, because the mean of its divisors is an integer number (2920052655).

Almost surely, 211031310013 is an apocalyptic number.

It is an amenable number.

11031310013 is a deficient number, since it is larger than the sum of its proper divisors (648900607).

11031310013 is an equidigital number, since it uses as much as digits as its factorization.

11031310013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648900606.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 11031310013 its reverse (31001313011), we get a palindrome (42032623024).

The spelling of 11031310013 in words is "eleven billion, thirty-one million, three hundred ten thousand, thirteen".

Divisors: 1 17 648900589 11031310013