20109114427 has 2 divisors, whose sum is σ = 20109114428. Its totient is φ = 20109114426.

The previous prime is 20109114419. The next prime is 20109114439. The reversal of 20109114427 is 72441190102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20109114427 - 2³ = 20109114419 is a prime.

It is not a weakly prime, because it can be changed into another prime (20109114457) 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, 10054557213 + 10054557214.

It is an arithmetic number, because the mean of its divisors is an integer number (10054557214).

Almost surely, 2^20109114427 is an apocalyptic number.

20109114427 is a deficient number, since it is larger than the sum of its proper divisors (1).

20109114427 is an equidigital number, since it uses as much as digits as its factorization.

20109114427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The spelling of 20109114427 in words is "twenty billion, one hundred nine million, one hundred fourteen thousand, four hundred twenty-seven".