123356873 has 4 divisors (see below), whose sum is σ = 129849360. Its totient is φ = 116864388.

The previous prime is 123356861. The next prime is 123356887. The reversal of 123356873 is 378653321.

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: 378653321 = 3557 ⋅106453.

It is a cyclic number.

It is not a de Polignac number, because 123356873 - 2⁸ = 123356617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123356803) 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, 3246215 + ... + 3246252.

It is an arithmetic number, because the mean of its divisors is an integer number (32462340).

Almost surely, 2^123356873 is an apocalyptic number.

It is an amenable number.

123356873 is a deficient number, since it is larger than the sum of its proper divisors (6492487).

123356873 is an equidigital number, since it uses as much as digits as its factorization.

123356873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6492486.

The product of its digits is 90720, while the sum is 38.

The square root of 123356873 is about 11106.6139304470. The cubic root of 123356873 is about 497.7994937516.

The spelling of 123356873 in words is "one hundred twenty-three million, three hundred fifty-six thousand, eight hundred seventy-three".