212343300031 has 4 divisors (see below), whose sum is σ = 213768423000. Its totient is φ = 210918177064.

The previous prime is 212343300019. The next prime is 212343300119. The reversal of 212343300031 is 130003343212.

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 212343300031 - 2⁵ = 212343299999 is a prime.

It is a super-2 number, since 2×212343300031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212343299975 and 212343300011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212343300731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 712561261 + ... + 712561558.

It is an arithmetic number, because the mean of its divisors is an integer number (53442105750).

Almost surely, 2^212343300031 is an apocalyptic number.

212343300031 is a deficient number, since it is larger than the sum of its proper divisors (1425122969).

212343300031 is a wasteful number, since it uses less digits than its factorization.

212343300031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1425122968.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 212343300031 its reverse (130003343212), we get a palindrome (342346643243).

The spelling of 212343300031 in words is "two hundred twelve billion, three hundred forty-three million, three hundred thousand, thirty-one".