20413021093 has 2 divisors, whose sum is σ = 20413021094. Its totient is φ = 20413021092.

The previous prime is 20413021039. The next prime is 20413021117. The reversal of 20413021093 is 39012031402.

Together with previous prime (20413021039) 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., 10518143364 + 9894877729 = 102558^2 + 99473^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413021093 - 2¹⁷ = 20412890021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20413051093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206510546 + 10206510547.

It is an arithmetic number, because the mean of its divisors is an integer number (10206510547).

Almost surely, 2^20413021093 is an apocalyptic number.

It is an amenable number.

20413021093 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413021093 is an equidigital number, since it uses as much as digits as its factorization.

20413021093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20413021093 its reverse (39012031402), we get a palindrome (59425052495).

The spelling of 20413021093 in words is "twenty billion, four hundred thirteen million, twenty-one thousand, ninety-three".