280103223 has 16 divisors (see below), whose sum is σ = 390113280. Its totient is φ = 178431264.

The previous prime is 280103207. The next prime is 280103227. The reversal of 280103223 is 322301082.

It is not a de Polignac number, because 280103223 - 2⁴ = 280103207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 280103223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (280103227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101658 + ... + 104376.

It is an arithmetic number, because the mean of its divisors is an integer number (24382080).

Almost surely, 2^280103223 is an apocalyptic number.

280103223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

280103223 is a deficient number, since it is larger than the sum of its proper divisors (110010057).

280103223 is a wasteful number, since it uses less digits than its factorization.

280103223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 280103223 is about 16736.2846235358. The cubic root of 280103223 is about 654.2936448459.

The spelling of 280103223 in words is "two hundred eighty million, one hundred three thousand, two hundred twenty-three".