20173411 has 2 divisors, whose sum is σ = 20173412. Its totient is φ = 20173410.

The previous prime is 20173409. The next prime is 20173423. The reversal of 20173411 is 11437102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20173411 - 2¹ = 20173409 is a prime.

It is a super-2 number, since 2×20173411² = 813933022749842, which contains 22 as substring.

Together with 20173409, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20173471) 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, 10086705 + 10086706.

It is an arithmetic number, because the mean of its divisors is an integer number (10086706).

Almost surely, 2^20173411 is an apocalyptic number.

20173411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20173411 is an equidigital number, since it uses as much as digits as its factorization.

20173411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 20173411 is about 4491.4820493908. The cubic root of 20173411 is about 272.2240215779.

The spelling of 20173411 in words is "twenty million, one hundred seventy-three thousand, four hundred eleven".