212335031 has 2 divisors, whose sum is σ = 212335032. Its totient is φ = 212335030.

The previous prime is 212335021. The next prime is 212335061. The reversal of 212335031 is 130533212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212335031 - 2¹⁰ = 212334007 is a prime.

It is a super-2 number, since 2×212335031² = 90172330779541922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 212334994 and 212335012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212335001) 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 as a sum of consecutive naturals, namely, 106167515 + 106167516.

It is an arithmetic number, because the mean of its divisors is an integer number (106167516).

Almost surely, 2^212335031 is an apocalyptic number.

212335031 is a deficient number, since it is larger than the sum of its proper divisors (1).

212335031 is an equidigital number, since it uses as much as digits as its factorization.

212335031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 212335031 is about 14571.7202484813. The cubic root of 212335031 is about 596.5871342380.

Adding to 212335031 its reverse (130533212), we get a palindrome (342868243).

The spelling of 212335031 in words is "two hundred twelve million, three hundred thirty-five thousand, thirty-one".