344054135123 has 4 divisors (see below), whose sum is σ = 344073215400. Its totient is φ = 344035054848.

The previous prime is 344054135081. The next prime is 344054135147. The reversal of 344054135123 is 321531450443.

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 344054135123 - 2¹⁸ = 344053872979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (344054135153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9513065 + ... + 9549162.

It is an arithmetic number, because the mean of its divisors is an integer number (86018303850).

Almost surely, 2^344054135123 is an apocalyptic number.

344054135123 is a deficient number, since it is larger than the sum of its proper divisors (19080277).

344054135123 is a wasteful number, since it uses less digits than its factorization.

344054135123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19080276.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 344054135123 its reverse (321531450443), we get a palindrome (665585585566).

The spelling of 344054135123 in words is "three hundred forty-four billion, fifty-four million, one hundred thirty-five thousand, one hundred twenty-three".