13240542205351 has 4 divisors (see below), whose sum is σ = 13246061400000. Its totient is φ = 13235023010704.

The previous prime is 13240542205339. The next prime is 13240542205361. The reversal of 13240542205351 is 15350224504231.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13240542205351 - 2¹¹ = 13240542203303 is a prime.

It is a super-2 number, since 2×13240542205351² (a number of 27 digits) contains 22 as substring.

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 13240542205351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240542205361) 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, 2759593726 + ... + 2759598523.

It is an arithmetic number, because the mean of its divisors is an integer number (3311515350000).

Almost surely, 2^{13240542205351} is an apocalyptic number.

13240542205351 is a deficient number, since it is larger than the sum of its proper divisors (5519194649).

13240542205351 is an equidigital number, since it uses as much as digits as its factorization.

13240542205351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5519194648.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 13240542205351 its reverse (15350224504231), we get a palindrome (28590766709582).

The spelling of 13240542205351 in words is "thirteen trillion, two hundred forty billion, five hundred forty-two million, two hundred five thousand, three hundred fifty-one".