13140313503421 has 8 divisors (see below), whose sum is σ = 14241241290584. Its totient is φ = 12052262064960.

The previous prime is 13140313503413. The next prime is 13140313503451. The reversal of 13140313503421 is 12430531304131.

It can be written as a sum of positive squares in 4 ways, for example, as 63852236100 + 13076461267321 = 252690^2 + 3616139^2 .

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

It is not a de Polignac number, because 13140313503421 - 2³ = 13140313503413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140313503451) 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, 3219085050 + ... + 3219089131.

It is an arithmetic number, because the mean of its divisors is an integer number (1780155161323).

Almost surely, 2^{13140313503421} is an apocalyptic number.

It is an amenable number.

13140313503421 is a deficient number, since it is larger than the sum of its proper divisors (1100927787163).

13140313503421 is a wasteful number, since it uses less digits than its factorization.

13140313503421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6438174351.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 13140313503421 its reverse (12430531304131), we get a palindrome (25570844807552).

The spelling of 13140313503421 in words is "thirteen trillion, one hundred forty billion, three hundred thirteen million, five hundred three thousand, four hundred twenty-one".