10020201340421 has 2 divisors, whose sum is σ = 10020201340422. Its totient is φ = 10020201340420.

The previous prime is 10020201340417. The next prime is 10020201340427. The reversal of 10020201340421 is 12404310202001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9676541589796 + 343659750625 = 3110714^2 + 586225^2 .

It is a cyclic number.

It is not a de Polignac number, because 10020201340421 - 2² = 10020201340417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10020201340393 and 10020201340402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10020201340427) 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, 5010100670210 + 5010100670211.

It is an arithmetic number, because the mean of its divisors is an integer number (5010100670211).

Almost surely, 2^{10020201340421} is an apocalyptic number.

It is an amenable number.

10020201340421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10020201340421 is an equidigital number, since it uses as much as digits as its factorization.

10020201340421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 10020201340421 its reverse (12404310202001), we get a palindrome (22424511542422).

The spelling of 10020201340421 in words is "ten trillion, twenty billion, two hundred one million, three hundred forty thousand, four hundred twenty-one".