123265312 has 48 divisors (see below), whose sum is σ = 264297600. Its totient is φ = 56367360.

The previous prime is 123265309. The next prime is 123265343. The reversal of 123265312 is 213562321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14137 + ... + 21127.

It is an arithmetic number, because the mean of its divisors is an integer number (5506200).

Almost surely, 2^123265312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123265312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132148800).

123265312 is an abundant number, since it is smaller than the sum of its proper divisors (141032288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123265312 is a wasteful number, since it uses less digits than its factorization.

123265312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7049 (or 7041 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 123265312 is about 11102.4912519668. The cubic root of 123265312 is about 497.6763002348.

The spelling of 123265312 in words is "one hundred twenty-three million, two hundred sixty-five thousand, three hundred twelve".