10243380881 has 2 divisors, whose sum is σ = 10243380882. Its totient is φ = 10243380880.

The previous prime is 10243380769. The next prime is 10243380883. The reversal of 10243380881 is 18808334201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9878570881 + 364810000 = 99391^2 + 19100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10243380881 is a prime.

It is a super-2 number, since 2×10243380881² (a number of 21 digits) contains 22 as substring.

Together with 10243380883, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10243380883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5121690440 + 5121690441.

It is an arithmetic number, because the mean of its divisors is an integer number (5121690441).

Almost surely, 2^10243380881 is an apocalyptic number.

It is an amenable number.

10243380881 is a deficient number, since it is larger than the sum of its proper divisors (1).

10243380881 is an equidigital number, since it uses as much as digits as its factorization.

10243380881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36864, while the sum is 38.

The spelling of 10243380881 in words is "ten billion, two hundred forty-three million, three hundred eighty thousand, eight hundred eighty-one".