212012203031 has 2 divisors, whose sum is σ = 212012203032. Its totient is φ = 212012203030.

The previous prime is 212012203001. The next prime is 212012203049. The reversal of 212012203031 is 130302210212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212012203031 is a prime.

It is a super-2 number, since 2×212012203031² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212012203001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006101515 + 106006101516.

It is an arithmetic number, because the mean of its divisors is an integer number (106006101516).

Almost surely, 2^212012203031 is an apocalyptic number.

212012203031 is a deficient number, since it is larger than the sum of its proper divisors (1).

212012203031 is an equidigital number, since it uses as much as digits as its factorization.

212012203031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212012203031 its reverse (130302210212), we get a palindrome (342314413243).

The spelling of 212012203031 in words is "two hundred twelve billion, twelve million, two hundred three thousand, thirty-one".