20203323793 has 2 divisors, whose sum is σ = 20203323794. Its totient is φ = 20203323792.

The previous prime is 20203323761. The next prime is 20203323857. The reversal of 20203323793 is 39732330202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12582557584 + 7620766209 = 112172^2 + 87297^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203323793 - 2⁵ = 20203323761 is a prime.

It is not a weakly prime, because it can be changed into another prime (20203323733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101661896 + 10101661897.

It is an arithmetic number, because the mean of its divisors is an integer number (10101661897).

Almost surely, 2^20203323793 is an apocalyptic number.

It is an amenable number.

20203323793 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203323793 is an equidigital number, since it uses as much as digits as its factorization.

20203323793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 34.

Adding to 20203323793 its reverse (39732330202), we get a palindrome (59935653995).

The spelling of 20203323793 in words is "twenty billion, two hundred three million, three hundred twenty-three thousand, seven hundred ninety-three".