20612411 has 2 divisors, whose sum is σ = 20612412. Its totient is φ = 20612410.

The previous prime is 20612377. The next prime is 20612413. The reversal of 20612411 is 11421602.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20612411 is a prime.

Together with 20612413, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20612411.

It is not a weakly prime, because it can be changed into another prime (20612413) 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, 10306205 + 10306206.

It is an arithmetic number, because the mean of its divisors is an integer number (10306206).

Almost surely, 2^20612411 is an apocalyptic number.

20612411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20612411 is an equidigital number, since it uses as much as digits as its factorization.

20612411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 20612411 is about 4540.0893163020. The cubic root of 20612411 is about 274.1845197162.

The spelling of 20612411 in words is "twenty million, six hundred twelve thousand, four hundred eleven".