243452123 has 4 divisors (see below), whose sum is σ = 243780528. Its totient is φ = 243123720.

The previous prime is 243452107. The next prime is 243452191. The reversal of 243452123 is 321254342.

243452123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243452123 - 2⁴ = 243452107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243452092 and 243452101.

It is not an unprimeable number, because it can be changed into a prime (243452423) 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, 163088 + ... + 164573.

It is an arithmetic number, because the mean of its divisors is an integer number (60945132).

Almost surely, 2^243452123 is an apocalyptic number.

243452123 is a deficient number, since it is larger than the sum of its proper divisors (328405).

243452123 is an equidigital number, since it uses as much as digits as its factorization.

243452123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328404.

The product of its digits is 5760, while the sum is 26.

The square root of 243452123 is about 15602.9523808797. The cubic root of 243452123 is about 624.4119251356.

The spelling of 243452123 in words is "two hundred forty-three million, four hundred fifty-two thousand, one hundred twenty-three".