211323012 has 24 divisors (see below), whose sum is σ = 493497312. Its totient is φ = 70382400.

The previous prime is 211322989. The next prime is 211323017. The reversal of 211323012 is 210323112.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 211322982 and 211323000.

It is not an unprimeable number, because it can be changed into a prime (211323017) 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, 9187 + ... + 22517.

It is an arithmetic number, because the mean of its divisors is an integer number (20562388).

Almost surely, 2^211323012 is an apocalyptic number.

It is an amenable number.

211323012 is an abundant number, since it is smaller than the sum of its proper divisors (282174300).

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

211323012 is a wasteful number, since it uses less digits than its factorization.

211323012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14659 (or 14657 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 211323012 is about 14536.9533259208. The cubic root of 211323012 is about 595.6378180274.

Adding to 211323012 its reverse (210323112), we get a palindrome (421646124).

The spelling of 211323012 in words is "two hundred eleven million, three hundred twenty-three thousand, twelve".