123400303243003 has 16 divisors (see below), whose sum is σ = 124467821497600. Its totient is φ = 122335423852320.

The previous prime is 123400303242947. The next prime is 123400303243033. The reversal of 123400303243003 is 300342303004321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123400303243003 - 2¹⁷ = 123400303111931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123400303243033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488798938 + ... + 489051328.

It is an arithmetic number, because the mean of its divisors is an integer number (7779238843600).

Almost surely, 2^{123400303243003} is an apocalyptic number.

123400303243003 is a deficient number, since it is larger than the sum of its proper divisors (1067518254597).

123400303243003 is a wasteful number, since it uses less digits than its factorization.

123400303243003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257602.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 123400303243003 its reverse (300342303004321), we get a palindrome (423742606247324).

The spelling of 123400303243003 in words is "one hundred twenty-three trillion, four hundred billion, three hundred three million, two hundred forty-three thousand, three".