212020310231 has 2 divisors, whose sum is σ = 212020310232. Its totient is φ = 212020310230.

The previous prime is 212020310111. The next prime is 212020310233. The reversal of 212020310231 is 132013020212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212020310231 - 2¹⁸ = 212020048087 is a prime.

It is a super-2 number, since 2×212020310231² (a number of 23 digits) contains 22 as substring.

Together with 212020310233, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212020310233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010155115 + 106010155116.

It is an arithmetic number, because the mean of its divisors is an integer number (106010155116).

Almost surely, 2^212020310231 is an apocalyptic number.

212020310231 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020310231 is an equidigital number, since it uses as much as digits as its factorization.

212020310231 is an evil number, because the sum of its binary digits is even.

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

Adding to 212020310231 its reverse (132013020212), we get a palindrome (344033330443).

The spelling of 212020310231 in words is "two hundred twelve billion, twenty million, three hundred ten thousand, two hundred thirty-one".