123403312044105 has 8 divisors (see below), whose sum is σ = 197445299270592. Its totient is φ = 65815099756848.

The previous prime is 123403312043909. The next prime is 123403312044127. The reversal of 123403312044105 is 501440213304321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123403312044105 - 2¹² = 123403312040009 is a prime.

It is a super-3 number, since 3×123403312044105³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4113443734789 + ... + 4113443734818.

It is an arithmetic number, because the mean of its divisors is an integer number (24680662408824).

Almost surely, 2^{123403312044105} is an apocalyptic number.

123403312044105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123403312044105 is a deficient number, since it is larger than the sum of its proper divisors (74041987226487).

123403312044105 is an equidigital number, since it uses as much as digits as its factorization.

123403312044105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8226887469615.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 123403312044105 its reverse (501440213304321), we get a palindrome (624843525348426).

The spelling of 123403312044105 in words is "one hundred twenty-three trillion, four hundred three billion, three hundred twelve million, forty-four thousand, one hundred five".