123312423 has 8 divisors (see below), whose sum is σ = 177064048. Its totient is φ = 75884544.

The previous prime is 123312421. The next prime is 123312473. The reversal of 123312423 is 324213321.

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

It is not a de Polignac number, because 123312423 - 2¹ = 123312421 is a prime.

It is a super-2 number, since 2×123312423² = 30411907332261858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123312423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123312421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1580890 + ... + 1580967.

It is an arithmetic number, because the mean of its divisors is an integer number (22133006).

Almost surely, 2^123312423 is an apocalyptic number.

123312423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123312423 is a deficient number, since it is larger than the sum of its proper divisors (53751625).

123312423 is a wasteful number, since it uses less digits than its factorization.

123312423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161873.

The product of its digits is 864, while the sum is 21.

The square root of 123312423 is about 11104.6126902292. The cubic root of 123312423 is about 497.7396947710.

Adding to 123312423 its reverse (324213321), we get a palindrome (447525744).

The spelling of 123312423 in words is "one hundred twenty-three million, three hundred twelve thousand, four hundred twenty-three".