20211120079453 has 2 divisors, whose sum is σ = 20211120079454. Its totient is φ = 20211120079452.

The previous prime is 20211120079441. The next prime is 20211120079487. The reversal of 20211120079453 is 35497002111202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19662865724089 + 548254355364 = 4434283^2 + 740442^2 .

It is a cyclic number.

It is not a de Polignac number, because 20211120079453 - 2¹⁷ = 20211119948381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20211120079433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105560039726 + 10105560039727.

It is an arithmetic number, because the mean of its divisors is an integer number (10105560039727).

Almost surely, 2^{20211120079453} is an apocalyptic number.

It is an amenable number.

20211120079453 is a deficient number, since it is larger than the sum of its proper divisors (1).

20211120079453 is an equidigital number, since it uses as much as digits as its factorization.

20211120079453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The spelling of 20211120079453 in words is "twenty trillion, two hundred eleven billion, one hundred twenty million, seventy-nine thousand, four hundred fifty-three".