13404412343 has 4 divisors (see below), whose sum is σ = 15319328400. Its totient is φ = 11489496288.

The previous prime is 13404412339. The next prime is 13404412349. The reversal of 13404412343 is 34321440431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13404412343 - 2² = 13404412339 is a prime.

It is a super-2 number, since 2×13404412343² (a number of 21 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 (13404412349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 957458018 + ... + 957458031.

It is an arithmetic number, because the mean of its divisors is an integer number (3829832100).

Almost surely, 2^13404412343 is an apocalyptic number.

13404412343 is a deficient number, since it is larger than the sum of its proper divisors (1914916057).

13404412343 is an equidigital number, since it uses as much as digits as its factorization.

13404412343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914916056.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 13404412343 its reverse (34321440431), we get a palindrome (47725852774).

The spelling of 13404412343 in words is "thirteen billion, four hundred four million, four hundred twelve thousand, three hundred forty-three".