1010202011281 has 2 divisors, whose sum is σ = 1010202011282. Its totient is φ = 1010202011280.

The previous prime is 1010202011239. The next prime is 1010202011293. The reversal of 1010202011281 is 1821102020101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 867254500225 + 142947511056 = 931265^2 + 378084^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010202011281 - 2³¹ = 1008054527633 is a prime.

It is a super-2 number, since 2×1010202011281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1010202015281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505101005640 + 505101005641.

It is an arithmetic number, because the mean of its divisors is an integer number (505101005641).

Almost surely, 2^{1010202011281} is an apocalyptic number.

It is an amenable number.

1010202011281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010202011281 is an equidigital number, since it uses as much as digits as its factorization.

1010202011281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 1010202011281 its reverse (1821102020101), we get a palindrome (2831304031382).

The spelling of 1010202011281 in words is "one trillion, ten billion, two hundred two million, eleven thousand, two hundred eighty-one".