13140353521431 has 32 divisors (see below), whose sum is σ = 19480696643520. Its totient is φ = 8754159946752.

The previous prime is 13140353521409. The next prime is 13140353521457. The reversal of 13140353521431 is 13412535304131.

13140353521431 is a `hidden beast` number, since 1 + 3 + 1 + 40 + 3 + 53 + 521 + 43 + 1 = 666.

It is not a de Polignac number, because 13140353521431 - 2³⁸ = 12865475614487 is a prime.

It is a super-2 number, since 2×13140353521431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140353521831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 256536735 + ... + 256587951.

It is an arithmetic number, because the mean of its divisors is an integer number (608771770110).

Almost surely, 2^{13140353521431} is an apocalyptic number.

13140353521431 is a deficient number, since it is larger than the sum of its proper divisors (6340343122089).

13140353521431 is a wasteful number, since it uses less digits than its factorization.

13140353521431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57632 (or 57626 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 13140353521431 its reverse (13412535304131), we get a palindrome (26552888825562).

The spelling of 13140353521431 in words is "thirteen trillion, one hundred forty billion, three hundred fifty-three million, five hundred twenty-one thousand, four hundred thirty-one".