20001010945453 has 2 divisors, whose sum is σ = 20001010945454. Its totient is φ = 20001010945452.

The previous prime is 20001010945403. The next prime is 20001010945493. The reversal of 20001010945453 is 35454901010002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15904447089444 + 4096563856009 = 3988038^2 + 2023997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20001010945453 is a prime.

It is a super-3 number, since 3×20001010945453³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001010945403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000505472726 + 10000505472727.

It is an arithmetic number, because the mean of its divisors is an integer number (10000505472727).

Almost surely, 2^{20001010945453} is an apocalyptic number.

It is an amenable number.

20001010945453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001010945453 is an equidigital number, since it uses as much as digits as its factorization.

20001010945453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

Adding to 20001010945453 its reverse (35454901010002), we get a palindrome (55455911955455).

The spelling of 20001010945453 in words is "twenty trillion, one billion, ten million, nine hundred forty-five thousand, four hundred fifty-three".