123214312 has 32 divisors (see below), whose sum is σ = 259620480. Its totient is φ = 54394560.

The previous prime is 123214303. The next prime is 123214313. The reversal of 123214312 is 213412321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123214312.

It is not an unprimeable number, because it can be changed into a prime (123214313) 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, 23364 + ... + 28147.

It is an arithmetic number, because the mean of its divisors is an integer number (8113140).

Almost surely, 2^123214312 is an apocalyptic number.

It is an amenable number.

123214312 is an abundant number, since it is smaller than the sum of its proper divisors (136406168).

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

123214312 is a wasteful number, since it uses less digits than its factorization.

123214312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51553 (or 51549 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 123214312 is about 11100.1942325349. The cubic root of 123214312 is about 497.6076542869.

Adding to 123214312 its reverse (213412321), we get a palindrome (336626633).

The spelling of 123214312 in words is "one hundred twenty-three million, two hundred fourteen thousand, three hundred twelve".