20020210009993 has 2 divisors, whose sum is σ = 20020210009994. Its totient is φ = 20020210009992.

The previous prime is 20020210009991. The next prime is 20020210010027. The reversal of 20020210009993 is 39990001202002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18888437442889 + 1131772567104 = 4346083^2 + 1063848^2 .

It is a cyclic number.

It is not a de Polignac number, because 20020210009993 - 2¹ = 20020210009991 is a prime.

Together with 20020210009991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (20020210009991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010105004996 + 10010105004997.

It is an arithmetic number, because the mean of its divisors is an integer number (10010105004997).

Almost surely, 2^{20020210009993} is an apocalyptic number.

It is an amenable number.

20020210009993 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020210009993 is an equidigital number, since it uses as much as digits as its factorization.

20020210009993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 20020210009993 in words is "twenty trillion, twenty billion, two hundred ten million, nine thousand, nine hundred ninety-three".