20213232119609 has 2 divisors, whose sum is σ = 20213232119610. Its totient is φ = 20213232119608.

The previous prime is 20213232119579. The next prime is 20213232119611. The reversal of 20213232119609 is 90691123231202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11233189044025 + 8980043075584 = 3351595^2 + 2996672^2 .

It is a cyclic number.

It is not a de Polignac number, because 20213232119609 - 2¹² = 20213232115513 is a prime.

Together with 20213232119611, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20213232119629) 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, 10106616059804 + 10106616059805.

It is an arithmetic number, because the mean of its divisors is an integer number (10106616059805).

Almost surely, 2^{20213232119609} is an apocalyptic number.

It is an amenable number.

20213232119609 is a deficient number, since it is larger than the sum of its proper divisors (1).

20213232119609 is an equidigital number, since it uses as much as digits as its factorization.

20213232119609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 20213232119609 in words is "twenty trillion, two hundred thirteen billion, two hundred thirty-two million, one hundred nineteen thousand, six hundred nine".