123344303505 has 64 divisors (see below), whose sum is σ = 216289958400. Its totient is φ = 59744563200.

The previous prime is 123344303503. The next prime is 123344303513. The reversal of 123344303505 is 505303443321.

It is not a de Polignac number, because 123344303505 - 2¹ = 123344303503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123344303503) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16775580 + ... + 16782930.

It is an arithmetic number, because the mean of its divisors is an integer number (3379530600).

Almost surely, 2^123344303505 is an apocalyptic number.

123344303505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123344303505 is a deficient number, since it is larger than the sum of its proper divisors (92945654895).

123344303505 is a wasteful number, since it uses less digits than its factorization.

123344303505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9674.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 123344303505 its reverse (505303443321), we get a palindrome (628647746826).

The spelling of 123344303505 in words is "one hundred twenty-three billion, three hundred forty-four million, three hundred three thousand, five hundred five".