10101231281 has 2 divisors, whose sum is σ = 10101231282. Its totient is φ = 10101231280.

The previous prime is 10101231253. The next prime is 10101231289. The reversal of 10101231281 is 18213210101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8715902881 + 1385328400 = 93359^2 + 37220^2 .

It is an emirp because it is prime and its reverse (18213210101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10101231281 - 2¹⁰ = 10101230257 is a prime.

It is a super-2 number, since 2×10101231281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10101231289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050615640 + 5050615641.

It is an arithmetic number, because the mean of its divisors is an integer number (5050615641).

Almost surely, 2^10101231281 is an apocalyptic number.

It is an amenable number.

10101231281 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101231281 is an equidigital number, since it uses as much as digits as its factorization.

10101231281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 10101231281 its reverse (18213210101), we get a palindrome (28314441382).

The spelling of 10101231281 in words is "ten billion, one hundred one million, two hundred thirty-one thousand, two hundred eighty-one".