123331307 has 6 divisors (see below), whose sum is σ = 135562644. Its totient is φ = 112119260.

The previous prime is 123331301. The next prime is 123331333. The reversal of 123331307 is 703133321.

It is a happy number.

It is not a de Polignac number, because 123331307 - 2⁴ = 123331291 is a prime.

It is a super-2 number, since 2×123331307² = 30421222572656498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123331301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 509513 + ... + 509754.

It is an arithmetic number, because the mean of its divisors is an integer number (22593774).

Almost surely, 2^123331307 is an apocalyptic number.

123331307 is a deficient number, since it is larger than the sum of its proper divisors (12231337).

123331307 is a wasteful number, since it uses less digits than its factorization.

123331307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019289 (or 1019278 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 23.

The square root of 123331307 is about 11105.4629349703. The cubic root of 123331307 is about 497.7651013397.

Adding to 123331307 its reverse (703133321), we get a palindrome (826464628).

The spelling of 123331307 in words is "one hundred twenty-three million, three hundred thirty-one thousand, three hundred seven".