573121103 has 4 divisors (see below), whose sum is σ = 582835080. Its totient is φ = 563407128.

The previous prime is 573121099. The next prime is 573121117. The reversal of 573121103 is 301121375.

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 573121103 - 2² = 573121099 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 (573121123) 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, 4856900 + ... + 4857017.

It is an arithmetic number, because the mean of its divisors is an integer number (145708770).

Almost surely, 2^573121103 is an apocalyptic number.

573121103 is a deficient number, since it is larger than the sum of its proper divisors (9713977).

573121103 is an equidigital number, since it uses as much as digits as its factorization.

573121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9713976.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 573121103 is about 23939.9478487318. The cubic root of 573121103 is about 830.6450218992.

Adding to 573121103 its reverse (301121375), we get a palindrome (874242478).

The spelling of 573121103 in words is "five hundred seventy-three million, one hundred twenty-one thousand, one hundred three".