11545342421013 has 48 divisors (see below), whose sum is σ = 17738138087280. Its totient is φ = 7222383802368.

The previous prime is 11545342420951. The next prime is 11545342421023. The reversal of 11545342421013 is 31012424354511.

11545342421013 is a `hidden beast` number, since 1 + 1 + 5 + 4 + 5 + 3 + 424 + 210 + 13 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 4255812213444 + 7289530207569 = 2062962^2 + 2699913^2 .

It is not a de Polignac number, because 11545342421013 - 2¹⁷ = 11545342289941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545342421023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7787581 + ... + 9150797.

It is an arithmetic number, because the mean of its divisors is an integer number (369544543485).

Almost surely, 2^{11545342421013} is an apocalyptic number.

It is an amenable number.

11545342421013 is a deficient number, since it is larger than the sum of its proper divisors (6192795666267).

11545342421013 is a wasteful number, since it uses less digits than its factorization.

11545342421013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364166 (or 1364163 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 11545342421013 its reverse (31012424354511), we get a palindrome (42557766775524).

The spelling of 11545342421013 in words is "eleven trillion, five hundred forty-five billion, three hundred forty-two million, four hundred twenty-one thousand, thirteen".