212423113 has 16 divisors (see below), whose sum is σ = 246395520. Its totient is φ = 179375616.

The previous prime is 212423089. The next prime is 212423117. The reversal of 212423113 is 311324212.

It is a happy number.

It is not a de Polignac number, because 212423113 - 2⁹ = 212422601 is a prime.

It is a super-2 number, since 2×212423113² = 90247157873221538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212423117) 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 15 ways as a sum of consecutive naturals, for example, 182070 + ... + 183232.

It is an arithmetic number, because the mean of its divisors is an integer number (15399720).

Almost surely, 2^212423113 is an apocalyptic number.

It is an amenable number.

212423113 is a deficient number, since it is larger than the sum of its proper divisors (33972407).

212423113 is a wasteful number, since it uses less digits than its factorization.

212423113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

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

The square root of 212423113 is about 14574.7422961780. The cubic root of 212423113 is about 596.6696160329.

Adding to 212423113 its reverse (311324212), we get a palindrome (523747325).

The spelling of 212423113 in words is "two hundred twelve million, four hundred twenty-three thousand, one hundred thirteen".