20214560393 has 2 divisors, whose sum is σ = 20214560394. Its totient is φ = 20214560392.

The previous prime is 20214560339. The next prime is 20214560417. The reversal of 20214560393 is 39306541202.

Together with previous prime (20214560339) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11448358009 + 8766202384 = 106997^2 + 93628^2 .

It is a cyclic number.

It is not a de Polignac number, because 20214560393 - 2⁶ = 20214560329 is a prime.

It is not a weakly prime, because it can be changed into another prime (20214560323) 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, 10107280196 + 10107280197.

It is an arithmetic number, because the mean of its divisors is an integer number (10107280197).

Almost surely, 2^20214560393 is an apocalyptic number.

It is an amenable number.

20214560393 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214560393 is an equidigital number, since it uses as much as digits as its factorization.

20214560393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The spelling of 20214560393 in words is "twenty billion, two hundred fourteen million, five hundred sixty thousand, three hundred ninety-three".