28310123 has 2 divisors, whose sum is σ = 28310124. Its totient is φ = 28310122.

The previous prime is 28310111. The next prime is 28310137. The reversal of 28310123 is 32101382.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28310123 - 2⁶ = 28310059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28310095 and 28310104.

It is not a weakly prime, because it can be changed into another prime (28310153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14155061 + 14155062.

It is an arithmetic number, because the mean of its divisors is an integer number (14155062).

Almost surely, 2^28310123 is an apocalyptic number.

28310123 is a deficient number, since it is larger than the sum of its proper divisors (1).

28310123 is an equidigital number, since it uses as much as digits as its factorization.

28310123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 28310123 is about 5320.7257963552. The cubic root of 28310123 is about 304.7758740431.

The spelling of 28310123 in words is "twenty-eight million, three hundred ten thousand, one hundred twenty-three".