20203011230057 has 2 divisors, whose sum is σ = 20203011230058. Its totient is φ = 20203011230056.

The previous prime is 20203011230023. The next prime is 20203011230161. The reversal of 20203011230057 is 75003211030202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19995349651456 + 207661578601 = 4471616^2 + 455699^2 .

It is a cyclic number.

It is not a de Polignac number, because 20203011230057 - 2³⁴ = 20185831360873 is a prime.

It is not a weakly prime, because it can be changed into another prime (20203011230957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101505615028 + 10101505615029.

It is an arithmetic number, because the mean of its divisors is an integer number (10101505615029).

Almost surely, 2^{20203011230057} is an apocalyptic number.

It is an amenable number.

20203011230057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20203011230057 is an equidigital number, since it uses as much as digits as its factorization.

20203011230057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 20203011230057 its reverse (75003211030202), we get a palindrome (95206222260259).

The spelling of 20203011230057 in words is "twenty trillion, two hundred three billion, eleven million, two hundred thirty thousand, fifty-seven".