20342011 has 2 divisors, whose sum is σ = 20342012. Its totient is φ = 20342010.

The previous prime is 20342009. The next prime is 20342029. The reversal of 20342011 is 11024302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20342011 - 2¹ = 20342009 is a prime.

Together with 20342009, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20341982 and 20342000.

It is not a weakly prime, because it can be changed into another prime (20342041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171005 + 10171006.

It is an arithmetic number, because the mean of its divisors is an integer number (10171006).

Almost surely, 2^20342011 is an apocalyptic number.

20342011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20342011 is an equidigital number, since it uses as much as digits as its factorization.

20342011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 20342011 is about 4510.2118575517. The cubic root of 20342011 is about 272.9802926016.

Adding to 20342011 its reverse (11024302), we get a palindrome (31366313).

The spelling of 20342011 in words is "twenty million, three hundred forty-two thousand, eleven".