123207331 has 8 divisors (see below), whose sum is σ = 133316624. Its totient is φ = 113188320.

The previous prime is 123207323. The next prime is 123207353. The reversal of 123207331 is 133702321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123207331 - 2³ = 123207323 is a prime.

It is a super-2 number, since 2×123207331² = 30360092824287122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123207391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19716 + ... + 25201.

It is an arithmetic number, because the mean of its divisors is an integer number (16664578).

Almost surely, 2^123207331 is an apocalyptic number.

123207331 is a deficient number, since it is larger than the sum of its proper divisors (10109293).

123207331 is a wasteful number, since it uses less digits than its factorization.

123207331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45141.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 123207331 is about 11099.8797741237. The cubic root of 123207331 is about 497.5982563942.

Adding to 123207331 its reverse (133702321), we get a palindrome (256909652).

The spelling of 123207331 in words is "one hundred twenty-three million, two hundred seven thousand, three hundred thirty-one".