20110200015281 has 2 divisors, whose sum is σ = 20110200015282. Its totient is φ = 20110200015280.

The previous prime is 20110200015277. The next prime is 20110200015293. The reversal of 20110200015281 is 18251000201102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15808894081600 + 4301305933681 = 3976040^2 + 2073959^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110200015281 - 2² = 20110200015277 is a prime.

It is a super-2 number, since 2×20110200015281² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20110200015251) 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, 10055100007640 + 10055100007641.

It is an arithmetic number, because the mean of its divisors is an integer number (10055100007641).

Almost surely, 2^{20110200015281} is an apocalyptic number.

It is an amenable number.

20110200015281 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110200015281 is an equidigital number, since it uses as much as digits as its factorization.

20110200015281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 20110200015281 its reverse (18251000201102), we get a palindrome (38361200216383).

The spelling of 20110200015281 in words is "twenty trillion, one hundred ten billion, two hundred million, fifteen thousand, two hundred eighty-one".