123228379 has 4 divisors (see below), whose sum is σ = 127203520. Its totient is φ = 119253240.

The previous prime is 123228373. The next prime is 123228401. The reversal of 123228379 is 973822321.

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 123228379 - 2⁷ = 123228251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123228373) 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, 1987524 + ... + 1987585.

It is an arithmetic number, because the mean of its divisors is an integer number (31800880).

Almost surely, 2^123228379 is an apocalyptic number.

123228379 is a deficient number, since it is larger than the sum of its proper divisors (3975141).

123228379 is an equidigital number, since it uses as much as digits as its factorization.

123228379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3975140.

The product of its digits is 36288, while the sum is 37.

The square root of 123228379 is about 11100.8278520118. The cubic root of 123228379 is about 497.6265903460.

The spelling of 123228379 in words is "one hundred twenty-three million, two hundred twenty-eight thousand, three hundred seventy-nine".