20130020293 has 2 divisors, whose sum is σ = 20130020294. Its totient is φ = 20130020292.

The previous prime is 20130020219. The next prime is 20130020303. The reversal of 20130020293 is 39202003102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18333701604 + 1796318689 = 135402^2 + 42383^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130020293 - 2²¹ = 20127923141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20130020203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10065010146 + 10065010147.

It is an arithmetic number, because the mean of its divisors is an integer number (10065010147).

Almost surely, 2^20130020293 is an apocalyptic number.

It is an amenable number.

20130020293 is a deficient number, since it is larger than the sum of its proper divisors (1).

20130020293 is an equidigital number, since it uses as much as digits as its factorization.

20130020293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20130020293 its reverse (39202003102), we get a palindrome (59332023395).

The spelling of 20130020293 in words is "twenty billion, one hundred thirty million, twenty thousand, two hundred ninety-three".