10001232281 has 2 divisors, whose sum is σ = 10001232282. Its totient is φ = 10001232280.

The previous prime is 10001232259. The next prime is 10001232383. The reversal of 10001232281 is 18223210001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5820316681 + 4180915600 = 76291^2 + 64660^2 .

It is a cyclic number.

It is not a de Polignac number, because 10001232281 - 2¹⁴ = 10001215897 is a prime.

It is a super-2 number, since 2×10001232281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10001232781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000616140 + 5000616141.

It is an arithmetic number, because the mean of its divisors is an integer number (5000616141).

Almost surely, 2^10001232281 is an apocalyptic number.

It is an amenable number.

10001232281 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001232281 is an equidigital number, since it uses as much as digits as its factorization.

10001232281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 10001232281 its reverse (18223210001), we get a palindrome (28224442282).

The spelling of 10001232281 in words is "ten billion, one million, two hundred thirty-two thousand, two hundred eighty-one".