212013423 has 8 divisors (see below), whose sum is σ = 314094000. Its totient is φ = 141342264.

The previous prime is 212013421. The next prime is 212013469. The reversal of 212013423 is 324310212.

212013423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212013423 - 2¹ = 212013421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212013396 and 212013405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3926148 + ... + 3926201.

It is an arithmetic number, because the mean of its divisors is an integer number (39261750).

Almost surely, 2^212013423 is an apocalyptic number.

212013423 is a deficient number, since it is larger than the sum of its proper divisors (102080577).

212013423 is an equidigital number, since it uses as much as digits as its factorization.

212013423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7852358 (or 7852352 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 212013423 is about 14560.6807189774. The cubic root of 212013423 is about 596.2857800608.

Adding to 212013423 its reverse (324310212), we get a palindrome (536323635).

The spelling of 212013423 in words is "two hundred twelve million, thirteen thousand, four hundred twenty-three".