10123030091 has 2 divisors, whose sum is σ = 10123030092. Its totient is φ = 10123030090.

The previous prime is 10123030013. The next prime is 10123030111. The reversal of 10123030091 is 19003032101.

10123030091 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (10123030111) can be obtained adding 10123030091 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10123030091 - 2¹⁸ = 10122767947 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (10123030891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061515045 + 5061515046.

It is an arithmetic number, because the mean of its divisors is an integer number (5061515046).

Almost surely, 2^10123030091 is an apocalyptic number.

10123030091 is a deficient number, since it is larger than the sum of its proper divisors (1).

10123030091 is an equidigital number, since it uses as much as digits as its factorization.

10123030091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 10123030091 its reverse (19003032101), we get a palindrome (29126062192).

The spelling of 10123030091 in words is "ten billion, one hundred twenty-three million, thirty thousand, ninety-one".