20129327 has 2 divisors, whose sum is σ = 20129328. Its totient is φ = 20129326.

The previous prime is 20129311. The next prime is 20129339. The reversal of 20129327 is 72392102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20129327 - 2⁴ = 20129311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20129296 and 20129305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20129927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10064663 + 10064664.

It is an arithmetic number, because the mean of its divisors is an integer number (10064664).

Almost surely, 2^20129327 is an apocalyptic number.

20129327 is a deficient number, since it is larger than the sum of its proper divisors (1).

20129327 is an equidigital number, since it uses as much as digits as its factorization.

20129327 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20129327 is about 4486.5718538769. The cubic root of 20129327 is about 272.0255842068.

The spelling of 20129327 in words is "twenty million, one hundred twenty-nine thousand, three hundred twenty-seven".