20838808411 has 2 divisors, whose sum is σ = 20838808412. Its totient is φ = 20838808410.

The previous prime is 20838808399. The next prime is 20838808421. The reversal of 20838808411 is 11480883802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20838808411 - 2¹³ = 20838800219 is a prime.

It is not a weakly prime, because it can be changed into another prime (20838808421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10419404205 + 10419404206.

It is an arithmetic number, because the mean of its divisors is an integer number (10419404206).

Almost surely, 2^20838808411 is an apocalyptic number.

20838808411 is a deficient number, since it is larger than the sum of its proper divisors (1).

20838808411 is an equidigital number, since it uses as much as digits as its factorization.

20838808411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98304, while the sum is 43.

The spelling of 20838808411 in words is "twenty billion, eight hundred thirty-eight million, eight hundred eight thousand, four hundred eleven".