20315266041353 has 2 divisors, whose sum is σ = 20315266041354. Its totient is φ = 20315266041352.

The previous prime is 20315266041341. The next prime is 20315266041377. The reversal of 20315266041353 is 35314066251302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20065812742144 + 249453299209 = 4479488^2 + 499453^2 .

It is a cyclic number.

It is not a de Polignac number, because 20315266041353 - 2⁶ = 20315266041289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20315266041353.

It is not a weakly prime, because it can be changed into another prime (20315266041953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10157633020676 + 10157633020677.

It is an arithmetic number, because the mean of its divisors is an integer number (10157633020677).

Almost surely, 2^{20315266041353} is an apocalyptic number.

It is an amenable number.

20315266041353 is a deficient number, since it is larger than the sum of its proper divisors (1).

20315266041353 is an equidigital number, since it uses as much as digits as its factorization.

20315266041353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 20315266041353 in words is "twenty trillion, three hundred fifteen billion, two hundred sixty-six million, forty-one thousand, three hundred fifty-three".