212124442403 has 4 divisors (see below), whose sum is σ = 223288886760. Its totient is φ = 200959998048.

The previous prime is 212124442349. The next prime is 212124442427. The reversal of 212124442403 is 304244421212.

It is a happy number.

212124442403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212124442403 - 2⁶ = 212124442339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212124442433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5582222150 + ... + 5582222187.

It is an arithmetic number, because the mean of its divisors is an integer number (55822221690).

Almost surely, 2^212124442403 is an apocalyptic number.

212124442403 is a deficient number, since it is larger than the sum of its proper divisors (11164444357).

212124442403 is a wasteful number, since it uses less digits than its factorization.

212124442403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11164444356.

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 212124442403 its reverse (304244421212), we get a palindrome (516368863615).

The spelling of 212124442403 in words is "two hundred twelve billion, one hundred twenty-four million, four hundred forty-two thousand, four hundred three".