10123043081 has 2 divisors, whose sum is σ = 10123043082. Its totient is φ = 10123043080.

The previous prime is 10123043033. The next prime is 10123043123. The reversal of 10123043081 is 18034032101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8110623481 + 2012419600 = 90059^2 + 44860^2 .

It is a cyclic number.

It is not a de Polignac number, because 10123043081 - 2³⁰ = 9049301257 is a prime.

It is a super-2 number, since 2×10123043081² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (10123043881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061521540 + 5061521541.

It is an arithmetic number, because the mean of its divisors is an integer number (5061521541).

Almost surely, 2^10123043081 is an apocalyptic number.

It is an amenable number.

10123043081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123043081 is an equidigital number, since it uses as much as digits as its factorization.

10123043081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 10123043081 its reverse (18034032101), we get a palindrome (28157075182).

The spelling of 10123043081 in words is "ten billion, one hundred twenty-three million, forty-three thousand, eighty-one".