212423341213 has 4 divisors (see below), whose sum is σ = 214044893568. Its totient is φ = 210801788860.

The previous prime is 212423341183. The next prime is 212423341217. The reversal of 212423341213 is 312143324212.

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-212423341213 is a prime.

It is a super-2 number, since 2×212423341213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212423341217) 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, 810775981 + ... + 810776242.

It is an arithmetic number, because the mean of its divisors is an integer number (53511223392).

Almost surely, 2^212423341213 is an apocalyptic number.

It is an amenable number.

212423341213 is a deficient number, since it is larger than the sum of its proper divisors (1621552355).

212423341213 is a wasteful number, since it uses less digits than its factorization.

212423341213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621552354.

The product of its digits is 6912, while the sum is 28.

Adding to 212423341213 its reverse (312143324212), we get a palindrome (524566665425).

The spelling of 212423341213 in words is "two hundred twelve billion, four hundred twenty-three million, three hundred forty-one thousand, two hundred thirteen".