123228371 has 4 divisors (see below), whose sum is σ = 140832432. Its totient is φ = 105624312.

The previous prime is 123228367. The next prime is 123228373. The reversal of 123228371 is 173822321.

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 123228371 - 2² = 123228367 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8802020 + ... + 8802033.

It is an arithmetic number, because the mean of its divisors is an integer number (35208108).

Almost surely, 2^123228371 is an apocalyptic number.

123228371 is a deficient number, since it is larger than the sum of its proper divisors (17604061).

123228371 is an equidigital number, since it uses as much as digits as its factorization.

123228371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17604060.

The product of its digits is 4032, while the sum is 29.

The square root of 123228371 is about 11100.8274916783. The cubic root of 123228371 is about 497.6265795774.

The spelling of 123228371 in words is "one hundred twenty-three million, two hundred twenty-eight thousand, three hundred seventy-one".