128100023 has 2 divisors, whose sum is σ = 128100024. Its totient is φ = 128100022.

The previous prime is 128099987. The next prime is 128100059. The reversal of 128100023 is 320001821.

It is a balanced prime because it is at equal distance from previous prime (128099987) and next prime (128100059).

It is an emirp because it is prime and its reverse (320001821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128100023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128099974 and 128100010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128100073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64050011 + 64050012.

It is an arithmetic number, because the mean of its divisors is an integer number (64050012).

Almost surely, 2^128100023 is an apocalyptic number.

128100023 is a deficient number, since it is larger than the sum of its proper divisors (1).

128100023 is an equidigital number, since it uses as much as digits as its factorization.

128100023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 128100023 is about 11318.1280696059. The cubic root of 128100023 is about 504.0996577412.

Adding to 128100023 its reverse (320001821), we get a palindrome (448101844).

The spelling of 128100023 in words is "one hundred twenty-eight million, one hundred thousand, twenty-three".