10120081 has 2 divisors, whose sum is σ = 10120082. Its totient is φ = 10120080.

The previous prime is 10120073. The next prime is 10120091. The reversal of 10120081 is 18002101.

10120081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5958481 + 4161600 = 2441^2 + 2040^2 .

It is a cyclic number.

It is not a de Polignac number, because 10120081 - 2³ = 10120073 is a prime.

It is a super-2 number, since 2×10120081² = 204832078893122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10120021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060040 + 5060041.

It is an arithmetic number, because the mean of its divisors is an integer number (5060041).

Almost surely, 2^10120081 is an apocalyptic number.

It is an amenable number.

10120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10120081 is an equidigital number, since it uses as much as digits as its factorization.

10120081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

The square root of 10120081 is about 3181.2074751578. The cubic root of 10120081 is about 216.3023956704.

Adding to 10120081 its reverse (18002101), we get a palindrome (28122182).

The spelling of 10120081 in words is "ten million, one hundred twenty thousand, eighty-one".