210002020199953 has 2 divisors, whose sum is σ = 210002020199954. Its totient is φ = 210002020199952.

The previous prime is 210002020199927. The next prime is 210002020200029. The reversal of 210002020199953 is 359991020200012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 191831170197969 + 18170850001984 = 13850313^2 + 4262728^2 .

It is a cyclic number.

It is not a de Polignac number, because 210002020199953 - 2³³ = 209993430265361 is a prime.

It is a super-2 number, since 2×210002020199953² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (210002020109953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105001010099976 + 105001010099977.

It is an arithmetic number, because the mean of its divisors is an integer number (105001010099977).

Almost surely, 2^{210002020199953} is an apocalyptic number.

It is an amenable number.

210002020199953 is a deficient number, since it is larger than the sum of its proper divisors (1).

210002020199953 is an equidigital number, since it uses as much as digits as its factorization.

210002020199953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 43.

Adding to 210002020199953 its reverse (359991020200012), we get a palindrome (569993040399965).

The spelling of 210002020199953 in words is "two hundred ten trillion, two billion, twenty million, one hundred ninety-nine thousand, nine hundred fifty-three".