280171145323 has 4 divisors (see below), whose sum is σ = 282309856488. Its totient is φ = 278032434160.

The previous prime is 280171145257. The next prime is 280171145339. The reversal of 280171145323 is 323541171082.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 280171145323 - 2³³ = 271581210731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (280171145923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1069355386 + ... + 1069355647.

It is an arithmetic number, because the mean of its divisors is an integer number (70577464122).

Almost surely, 2^280171145323 is an apocalyptic number.

280171145323 is a deficient number, since it is larger than the sum of its proper divisors (2138711165).

280171145323 is a wasteful number, since it uses less digits than its factorization.

280171145323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138711164.

The product of its (nonzero) digits is 40320, while the sum is 37.

The spelling of 280171145323 in words is "two hundred eighty billion, one hundred seventy-one million, one hundred forty-five thousand, three hundred twenty-three".