3155434543423 has 4 divisors (see below), whose sum is σ = 3155711760688. Its totient is φ = 3155157326160.

The previous prime is 3155434543411. The next prime is 3155434543427. The reversal of 3155434543423 is 3243454345513.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3155434543423 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 (3155434543427) 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, 138591558 + ... + 138614323.

It is an arithmetic number, because the mean of its divisors is an integer number (788927940172).

Almost surely, 2^{3155434543423} is an apocalyptic number.

3155434543423 is a deficient number, since it is larger than the sum of its proper divisors (277217265).

3155434543423 is a wasteful number, since it uses less digits than its factorization.

3155434543423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277217264.

The product of its digits is 5184000, while the sum is 46.

Adding to 3155434543423 its reverse (3243454345513), we get a palindrome (6398888888936).

The spelling of 3155434543423 in words is "three trillion, one hundred fifty-five billion, four hundred thirty-four million, five hundred forty-three thousand, four hundred twenty-three".