212023143 has 16 divisors (see below), whose sum is σ = 316892640. Its totient is φ = 140095872.

The previous prime is 212023121. The next prime is 212023151. The reversal of 212023143 is 341320212.

It is not a de Polignac number, because 212023143 - 2⁶ = 212023079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212023183) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31696 + ... + 37797.

It is an arithmetic number, because the mean of its divisors is an integer number (19805790).

Almost surely, 2^212023143 is an apocalyptic number.

212023143 is a deficient number, since it is larger than the sum of its proper divisors (104869497).

212023143 is a wasteful number, since it uses less digits than its factorization.

212023143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69615 (or 69609 counting only the distinct ones).

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

The square root of 212023143 is about 14561.0144907558. The cubic root of 212023143 is about 596.2948923914.

Adding to 212023143 its reverse (341320212), we get a palindrome (553343355).

The spelling of 212023143 in words is "two hundred twelve million, twenty-three thousand, one hundred forty-three".