20924011 has 2 divisors, whose sum is σ = 20924012. Its totient is φ = 20924010.

The previous prime is 20924003. The next prime is 20924021. The reversal of 20924011 is 11042902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20924011 - 2³ = 20924003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20924011.

It is not a weakly prime, because it can be changed into another prime (20924021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10462005 + 10462006.

It is an arithmetic number, because the mean of its divisors is an integer number (10462006).

Almost surely, 2^20924011 is an apocalyptic number.

20924011 is a deficient number, since it is larger than the sum of its proper divisors (1).

20924011 is an equidigital number, since it uses as much as digits as its factorization.

20924011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 20924011 is about 4574.2771013571. The cubic root of 20924011 is about 275.5592410178.

Adding to 20924011 its reverse (11042902), we get a palindrome (31966913).

The spelling of 20924011 in words is "twenty million, nine hundred twenty-four thousand, eleven".