13431550242340 has 12 divisors (see below), whose sum is σ = 28206255508956. Its totient is φ = 5372620096928.

The previous prime is 13431550242269. The next prime is 13431550242377. The reversal of 13431550242340 is 4324205513431.

It can be written as a sum of positive squares in 2 ways, for example, as 10361394463744 + 3070155778596 = 3218912^2 + 1752186^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13431550242340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335788756039 + ... + 335788756078.

It is an arithmetic number, because the mean of its divisors is an integer number (2350521292413).

Almost surely, 2^{13431550242340} is an apocalyptic number.

13431550242340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13431550242340 is an abundant number, since it is smaller than the sum of its proper divisors (14774705266616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13431550242340 is a wasteful number, since it uses less digits than its factorization.

13431550242340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671577512126 (or 671577512124 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 13431550242340 its reverse (4324205513431), we get a palindrome (17755755755771).

The spelling of 13431550242340 in words is "thirteen trillion, four hundred thirty-one billion, five hundred fifty million, two hundred forty-two thousand, three hundred forty".