20308940801 has 2 divisors, whose sum is σ = 20308940802. Its totient is φ = 20308940800.

The previous prime is 20308940783. The next prime is 20308940917. The reversal of 20308940801 is 10804980302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13515225025 + 6793715776 = 116255^2 + 82424^2 .

It is a cyclic number.

It is not a de Polignac number, because 20308940801 - 2¹⁸ = 20308678657 is a prime.

It is not a weakly prime, because it can be changed into another prime (20308540801) 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, 10154470400 + 10154470401.

It is an arithmetic number, because the mean of its divisors is an integer number (10154470401).

Almost surely, 2^20308940801 is an apocalyptic number.

It is an amenable number.

20308940801 is a deficient number, since it is larger than the sum of its proper divisors (1).

20308940801 is an equidigital number, since it uses as much as digits as its factorization.

20308940801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 35.

The spelling of 20308940801 in words is "twenty billion, three hundred eight million, nine hundred forty thousand, eight hundred one".