212304242141 has 4 divisors (see below), whose sum is σ = 212325647232. Its totient is φ = 212282837052.

The previous prime is 212304242131. The next prime is 212304242179. The reversal of 212304242141 is 141242403212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212304242141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212304242141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212304242131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10687661 + ... + 10707506.

It is an arithmetic number, because the mean of its divisors is an integer number (53081411808).

Almost surely, 2^212304242141 is an apocalyptic number.

It is an amenable number.

212304242141 is a deficient number, since it is larger than the sum of its proper divisors (21405091).

212304242141 is an equidigital number, since it uses as much as digits as its factorization.

212304242141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21405090.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 212304242141 its reverse (141242403212), we get a palindrome (353546645353).

The spelling of 212304242141 in words is "two hundred twelve billion, three hundred four million, two hundred forty-two thousand, one hundred forty-one".