20342911 has 2 divisors, whose sum is σ = 20342912. Its totient is φ = 20342910.

The previous prime is 20342899. The next prime is 20342921. The reversal of 20342911 is 11924302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20342911 - 2⁷ = 20342783 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20342921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10171455 + 10171456.

It is an arithmetic number, because the mean of its divisors is an integer number (10171456).

Almost surely, 2^20342911 is an apocalyptic number.

20342911 is a deficient number, since it is larger than the sum of its proper divisors (1).

20342911 is an equidigital number, since it uses as much as digits as its factorization.

20342911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 20342911 is about 4510.3116300318. The cubic root of 20342911 is about 272.9843184022.

The spelling of 20342911 in words is "twenty million, three hundred forty-two thousand, nine hundred eleven".