123354321 has 4 divisors (see below), whose sum is σ = 164472432. Its totient is φ = 82236212.

The previous prime is 123354317. The next prime is 123354331. The reversal of 123354321 is 123453321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123453321 = 3 ⋅41151107.

It is a cyclic number.

It is not a de Polignac number, because 123354321 - 2² = 123354317 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123354291 and 123354300.

It is not an unprimeable number, because it can be changed into a prime (123354331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20559051 + ... + 20559056.

It is an arithmetic number, because the mean of its divisors is an integer number (41118108).

Almost surely, 2^123354321 is an apocalyptic number.

It is an amenable number.

123354321 is a deficient number, since it is larger than the sum of its proper divisors (41118111).

123354321 is an equidigital number, since it uses as much as digits as its factorization.

123354321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41118110.

The product of its digits is 2160, while the sum is 24.

The square root of 123354321 is about 11106.4990433530. The cubic root of 123354321 is about 497.7960609121.

The spelling of 123354321 in words is "one hundred twenty-three million, three hundred fifty-four thousand, three hundred twenty-one".