20453015312063 has 2 divisors, whose sum is σ = 20453015312064. Its totient is φ = 20453015312062.

The previous prime is 20453015312047. The next prime is 20453015312099. The reversal of 20453015312063 is 36021351035402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20453015312063 - 2⁴ = 20453015312047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20453015312363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10226507656031 + 10226507656032.

It is an arithmetic number, because the mean of its divisors is an integer number (10226507656032).

Almost surely, 2^{20453015312063} is an apocalyptic number.

20453015312063 is a deficient number, since it is larger than the sum of its proper divisors (1).

20453015312063 is an equidigital number, since it uses as much as digits as its factorization.

20453015312063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 20453015312063 its reverse (36021351035402), we get a palindrome (56474366347465).

The spelling of 20453015312063 in words is "twenty trillion, four hundred fifty-three billion, fifteen million, three hundred twelve thousand, sixty-three".