13005431353543 has 8 divisors (see below), whose sum is σ = 13025590071680. Its totient is φ = 12985276502520.

The previous prime is 13005431353487. The next prime is 13005431353547. The reversal of 13005431353543 is 34535313450031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13005431353543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13005431353496 and 13005431353505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005431353547) 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, 5801278 + ... + 7724356.

It is an arithmetic number, because the mean of its divisors is an integer number (1628198758960).

Almost surely, 2^{13005431353543} is an apocalyptic number.

13005431353543 is a deficient number, since it is larger than the sum of its proper divisors (20158718137).

13005431353543 is an equidigital number, since it uses as much as digits as its factorization.

13005431353543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933557.

The product of its (nonzero) digits is 486000, while the sum is 40.

The spelling of 13005431353543 in words is "thirteen trillion, five billion, four hundred thirty-one million, three hundred fifty-three thousand, five hundred forty-three".