123212375 has 64 divisors (see below), whose sum is σ = 185238144. Its totient is φ = 80640000.

The previous prime is 123212371. The next prime is 123212377. The reversal of 123212375 is 573212321.

It is not a de Polignac number, because 123212375 - 2² = 123212371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212371) 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 63 ways as a sum of consecutive naturals, for example, 1090319 + ... + 1090431.

It is an arithmetic number, because the mean of its divisors is an integer number (2894346).

Almost surely, 2^123212375 is an apocalyptic number.

123212375 is a deficient number, since it is larger than the sum of its proper divisors (62025769).

123212375 is a wasteful number, since it uses less digits than its factorization.

123212375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 203 counting only the distinct ones).

The product of its digits is 2520, while the sum is 26.

The square root of 123212375 is about 11100.1069814664. The cubic root of 123212375 is about 497.6050467135.

Adding to 123212375 its reverse (573212321), we get a palindrome (696424696).

The spelling of 123212375 in words is "one hundred twenty-three million, two hundred twelve thousand, three hundred seventy-five".