20300312290553 has 2 divisors, whose sum is σ = 20300312290554. Its totient is φ = 20300312290552.

The previous prime is 20300312290537. The next prime is 20300312290567. The reversal of 20300312290553 is 35509221300302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14317044061369 + 5983268229184 = 3783787^2 + 2446072^2 .

It is a cyclic number.

It is not a de Polignac number, because 20300312290553 - 2⁴ = 20300312290537 is a prime.

It is not a weakly prime, because it can be changed into another prime (20300312280553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150156145276 + 10150156145277.

It is an arithmetic number, because the mean of its divisors is an integer number (10150156145277).

Almost surely, 2^{20300312290553} is an apocalyptic number.

It is an amenable number.

20300312290553 is a deficient number, since it is larger than the sum of its proper divisors (1).

20300312290553 is an equidigital number, since it uses as much as digits as its factorization.

20300312290553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 20300312290553 its reverse (35509221300302), we get a palindrome (55809533590855).

The spelling of 20300312290553 in words is "twenty trillion, three hundred billion, three hundred twelve million, two hundred ninety thousand, five hundred fifty-three".