13405424343431 has 8 divisors (see below), whose sum is σ = 14196072037104. Its totient is φ = 12615009240960.

The previous prime is 13405424343419. The next prime is 13405424343439. The reversal of 13405424343431 is 13434342450431.

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

It is a cyclic number.

It is not a de Polignac number, because 13405424343431 - 2²² = 13405420149127 is a prime.

It is a super-2 number, since 2×13405424343431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405424343439) 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, 58029125 + ... + 58259678.

It is an arithmetic number, because the mean of its divisors is an integer number (1774509004638).

Almost surely, 2^{13405424343431} is an apocalyptic number.

13405424343431 is a deficient number, since it is larger than the sum of its proper divisors (790647693673).

13405424343431 is a wasteful number, since it uses less digits than its factorization.

13405424343431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116295601.

The product of its (nonzero) digits is 829440, while the sum is 41.

Adding to 13405424343431 its reverse (13434342450431), we get a palindrome (26839766793862).

The spelling of 13405424343431 in words is "thirteen trillion, four hundred five billion, four hundred twenty-four million, three hundred forty-three thousand, four hundred thirty-one".