123453321 has 4 divisors (see below), whose sum is σ = 164604432. Its totient is φ = 82302212.

The previous prime is 123453307. The next prime is 123453331. The reversal of 123453321 is 123354321.

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: 123354321 = 3 ⋅41118107.

It is a cyclic number.

It is not a de Polignac number, because 123453321 - 2⁹ = 123452809 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123453291 and 123453300.

It is not an unprimeable number, because it can be changed into a prime (123453331) 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, 20575551 + ... + 20575556.

It is an arithmetic number, because the mean of its divisors is an integer number (41151108).

Almost surely, 2^123453321 is an apocalyptic number.

It is an amenable number.

123453321 is a deficient number, since it is larger than the sum of its proper divisors (41151111).

123453321 is an equidigital number, since it uses as much as digits as its factorization.

123453321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41151110.

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

The square root of 123453321 is about 11110.9549994589. The cubic root of 123453321 is about 497.9291967210.

The spelling of 123453321 in words is "one hundred twenty-three million, four hundred fifty-three thousand, three hundred twenty-one".