280324123 has 2 divisors, whose sum is σ = 280324124. Its totient is φ = 280324122.

The previous prime is 280324111. The next prime is 280324127. The reversal of 280324123 is 321423082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 280324123 - 2⁵ = 280324091 is a prime.

It is a super-2 number, since 2×280324123² = 157163227871438258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (280324127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140162061 + 140162062.

It is an arithmetic number, because the mean of its divisors is an integer number (140162062).

Almost surely, 2^280324123 is an apocalyptic number.

280324123 is a deficient number, since it is larger than the sum of its proper divisors (1).

280324123 is an equidigital number, since it uses as much as digits as its factorization.

280324123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 280324123 is about 16742.8827565626. The cubic root of 280324123 is about 654.4655998921.

The spelling of 280324123 in words is "two hundred eighty million, three hundred twenty-four thousand, one hundred twenty-three".