212673123 has 24 divisors (see below), whose sum is σ = 332540208. Its totient is φ = 130197312.

The previous prime is 212673107. The next prime is 212673133. The reversal of 212673123 is 321376212.

It is not a de Polignac number, because 212673123 - 2⁴ = 212673107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212673133) 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 23 ways as a sum of consecutive naturals, for example, 18436 + ... + 27662.

It is an arithmetic number, because the mean of its divisors is an integer number (13855842).

Almost surely, 2^212673123 is an apocalyptic number.

212673123 is a deficient number, since it is larger than the sum of its proper divisors (119867085).

212673123 is a wasteful number, since it uses less digits than its factorization.

212673123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9443 (or 9440 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 212673123 is about 14583.3165980856. The cubic root of 212673123 is about 596.9036063992.

The spelling of 212673123 in words is "two hundred twelve million, six hundred seventy-three thousand, one hundred twenty-three".