20102206927919 has 2 divisors, whose sum is σ = 20102206927920. Its totient is φ = 20102206927918.

The previous prime is 20102206927889. The next prime is 20102206927921. The reversal of 20102206927919 is 91972960220102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20102206927919 - 2³⁶ = 20033487451183 is a prime.

It is a super-2 number, since 2×20102206927919² (a number of 27 digits) contains 22 as substring.

Together with 20102206927921, 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 (20102206927519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051103463959 + 10051103463960.

It is an arithmetic number, because the mean of its divisors is an integer number (10051103463960).

Almost surely, 2^{20102206927919} is an apocalyptic number.

20102206927919 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102206927919 is an equidigital number, since it uses as much as digits as its factorization.

20102206927919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 20102206927919 in words is "twenty trillion, one hundred two billion, two hundred six million, nine hundred twenty-seven thousand, nine hundred nineteen".