561223103 has 8 divisors (see below), whose sum is σ = 646080672. Its totient is φ = 477536256.

The previous prime is 561223081. The next prime is 561223127. The reversal of 561223103 is 301322165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561223103 - 2²² = 557028799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561223303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291650 + ... + 293567.

It is an arithmetic number, because the mean of its divisors is an integer number (80760084).

Almost surely, 2^561223103 is an apocalyptic number.

561223103 is a deficient number, since it is larger than the sum of its proper divisors (84857569).

561223103 is a wasteful number, since it uses less digits than its factorization.

561223103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585361.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 561223103 is about 23690.1478045199. The cubic root of 561223103 is about 824.8567136523.

Adding to 561223103 its reverse (301322165), we get a palindrome (862545268).

The spelling of 561223103 in words is "five hundred sixty-one million, two hundred twenty-three thousand, one hundred three".