123340673 has 4 divisors (see below), whose sum is σ = 123592368. Its totient is φ = 123088980.

The previous prime is 123340603. The next prime is 123340687. The reversal of 123340673 is 376043321.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 123340673 - 2¹⁶ = 123275137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123340603) 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, 125111 + ... + 126092.

It is an arithmetic number, because the mean of its divisors is an integer number (30898092).

Almost surely, 2^123340673 is an apocalyptic number.

It is an amenable number.

123340673 is a deficient number, since it is larger than the sum of its proper divisors (251695).

123340673 is an equidigital number, since it uses as much as digits as its factorization.

123340673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251694.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 123340673 is about 11105.8846113221. The cubic root of 123340673 is about 497.7777014114. Note that the first 4 decimals are identical.

Adding to 123340673 its reverse (376043321), we get a palindrome (499383994).

The spelling of 123340673 in words is "one hundred twenty-three million, three hundred forty thousand, six hundred seventy-three".