123231394 has 16 divisors (see below), whose sum is σ = 217163520. Its totient is φ = 51705360.

The previous prime is 123231391. The next prime is 123231403. The reversal of 123231394 is 493132321.

It is not an unprimeable number, because it can be changed into a prime (123231391) 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 7 ways as a sum of consecutive naturals, for example, 215154 + ... + 215725.

It is an arithmetic number, because the mean of its divisors is an integer number (13572720).

Almost surely, 2^123231394 is an apocalyptic number.

123231394 is a deficient number, since it is larger than the sum of its proper divisors (93932126).

123231394 is a wasteful number, since it uses less digits than its factorization.

123231394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430905.

The product of its digits is 3888, while the sum is 28.

The square root of 123231394 is about 11100.9636518637. The cubic root of 123231394 is about 497.6306487508.

The spelling of 123231394 in words is "one hundred twenty-three million, two hundred thirty-one thousand, three hundred ninety-four".