212320212031 has 2 divisors, whose sum is σ = 212320212032. Its totient is φ = 212320212030.

The previous prime is 212320211963. The next prime is 212320212053. The reversal of 212320212031 is 130212023212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212320212031 is a prime.

It is a super-2 number, since 2×212320212031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212320222031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106160106015 + 106160106016.

It is an arithmetic number, because the mean of its divisors is an integer number (106160106016).

Almost surely, 2^212320212031 is an apocalyptic number.

212320212031 is a deficient number, since it is larger than the sum of its proper divisors (1).

212320212031 is an equidigital number, since it uses as much as digits as its factorization.

212320212031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212320212031 its reverse (130212023212), we get a palindrome (342532235243).

The spelling of 212320212031 in words is "two hundred twelve billion, three hundred twenty million, two hundred twelve thousand, thirty-one".