212144301243 has 24 divisors (see below), whose sum is σ = 358350806528. Its totient is φ = 118406120112.

The previous prime is 212144301223. The next prime is 212144301251. The reversal of 212144301243 is 342103441212.

212144301243 is a `hidden beast` number, since 2 + 1 + 214 + 430 + 12 + 4 + 3 = 666.

It is not a de Polignac number, because 212144301243 - 2⁸ = 212144300987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212144301223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39152755 + ... + 39158172.

Almost surely, 2^212144301243 is an apocalyptic number.

212144301243 is a deficient number, since it is larger than the sum of its proper divisors (146206505285).

212144301243 is a wasteful number, since it uses less digits than its factorization.

212144301243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78310983 (or 78310980 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 212144301243 its reverse (342103441212), we get a palindrome (554247742455).

The spelling of 212144301243 in words is "two hundred twelve billion, one hundred forty-four million, three hundred one thousand, two hundred forty-three".