23123100019 has 2 divisors, whose sum is σ = 23123100020. Its totient is φ = 23123100018.

The previous prime is 23123099999. The next prime is 23123100023. The reversal of 23123100019 is 91000132132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23123100019 - 2¹¹ = 23123097971 is a prime.

It is a super-2 number, since 2×23123100019² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23123100029) 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, 11561550009 + 11561550010.

It is an arithmetic number, because the mean of its divisors is an integer number (11561550010).

Almost surely, 2^23123100019 is an apocalyptic number.

23123100019 is a deficient number, since it is larger than the sum of its proper divisors (1).

23123100019 is an equidigital number, since it uses as much as digits as its factorization.

23123100019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 23123100019 in words is "twenty-three billion, one hundred twenty-three million, one hundred thousand, nineteen".