20212312339 has 2 divisors, whose sum is σ = 20212312340. Its totient is φ = 20212312338.

The previous prime is 20212312331. The next prime is 20212312349. The reversal of 20212312339 is 93321321202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20212312339 - 2³ = 20212312331 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212312331) 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, 10106156169 + 10106156170.

It is an arithmetic number, because the mean of its divisors is an integer number (10106156170).

Almost surely, 2^20212312339 is an apocalyptic number.

20212312339 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212312339 is an equidigital number, since it uses as much as digits as its factorization.

20212312339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 20212312339 in words is "twenty billion, two hundred twelve million, three hundred twelve thousand, three hundred thirty-nine".