212230300031 has 4 divisors (see below), whose sum is σ = 212231304552. Its totient is φ = 212229295512.

The previous prime is 212230299943. The next prime is 212230300069. The reversal of 212230300031 is 130003032212.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212230300031 is a prime.

It is a super-2 number, since 2×212230300031² (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 = 212230299982 and 212230300009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212230300091) 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, 49001 + ... + 653346.

It is an arithmetic number, because the mean of its divisors is an integer number (53057826138).

Almost surely, 2^212230300031 is an apocalyptic number.

212230300031 is a deficient number, since it is larger than the sum of its proper divisors (1004521).

212230300031 is an equidigital number, since it uses as much as digits as its factorization.

212230300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004520.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 212230300031 its reverse (130003032212), we get a palindrome (342233332243).

The spelling of 212230300031 in words is "two hundred twelve billion, two hundred thirty million, three hundred thousand, thirty-one".