11512342465205 has 8 divisors (see below), whose sum is σ = 13814903251800. Its totient is φ = 9209812443136.

The previous prime is 11512342465171. The next prime is 11512342465207. The reversal of 11512342465205 is 50256424321511.

It is a happy number.

11512342465205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 4922283578884 + 6590058886321 = 2218622^2 + 2567111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11512342465205 - 2¹⁶ = 11512342399669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512342465207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6859700 + ... + 8371389.

It is an arithmetic number, because the mean of its divisors is an integer number (1726862906475).

Almost surely, 2^{11512342465205} is an apocalyptic number.

It is an amenable number.

11512342465205 is a deficient number, since it is larger than the sum of its proper divisors (2302560786595).

11512342465205 is a wasteful number, since it uses less digits than its factorization.

11512342465205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15382263.

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 11512342465205 its reverse (50256424321511), we get a palindrome (61768766786716).

The spelling of 11512342465205 in words is "eleven trillion, five hundred twelve billion, three hundred forty-two million, four hundred sixty-five thousand, two hundred five".