10081048921 has 4 divisors (see below), whose sum is σ = 10081323700. Its totient is φ = 10080774144.

The previous prime is 10081048891. The next prime is 10081048961. The reversal of 10081048921 is 12984018001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12984018001 = 43 ⋅301953907.

It can be written as a sum of positive squares in 2 ways, for example, as 710808921 + 9370240000 = 26661^2 + 96800^2 .

It is a cyclic number.

It is not a de Polignac number, because 10081048921 - 2⁷ = 10081048793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10081048961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71976 + ... + 159193.

It is an arithmetic number, because the mean of its divisors is an integer number (2520330925).

Almost surely, 2^10081048921 is an apocalyptic number.

It is an amenable number.

10081048921 is a deficient number, since it is larger than the sum of its proper divisors (274779).

10081048921 is an equidigital number, since it uses as much as digits as its factorization.

10081048921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274778.

The product of its (nonzero) digits is 4608, while the sum is 34.

The spelling of 10081048921 in words is "ten billion, eighty-one million, forty-eight thousand, nine hundred twenty-one".