10841017921 has 2 divisors, whose sum is σ = 10841017922. Its totient is φ = 10841017920.

The previous prime is 10841017919. The next prime is 10841017931. The reversal of 10841017921 is 12971014801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7163929600 + 3677088321 = 84640^2 + 60639^2 .

It is a cyclic number.

It is not a de Polignac number, because 10841017921 - 2¹ = 10841017919 is a prime.

Together with 10841017919, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10841017931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5420508960 + 5420508961.

It is an arithmetic number, because the mean of its divisors is an integer number (5420508961).

Almost surely, 2^10841017921 is an apocalyptic number.

It is an amenable number.

10841017921 is a deficient number, since it is larger than the sum of its proper divisors (1).

10841017921 is an equidigital number, since it uses as much as digits as its factorization.

10841017921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 34.

The spelling of 10841017921 in words is "ten billion, eight hundred forty-one million, seventeen thousand, nine hundred twenty-one".