573213810121 has 4 divisors (see below), whose sum is σ = 573655765012. Its totient is φ = 572771855232.

The previous prime is 573213810107. The next prime is 573213810149. The reversal of 573213810121 is 121018312375.

573213810121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 461414525625 + 111799284496 = 679275^2 + 334364^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-573213810121 is a prime.

It is a super-2 number, since 2×573213810121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (573213810161) 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, 220975500 + ... + 220978093.

It is an arithmetic number, because the mean of its divisors is an integer number (143413941253).

Almost surely, 2^573213810121 is an apocalyptic number.

It is an amenable number.

573213810121 is a deficient number, since it is larger than the sum of its proper divisors (441954891).

573213810121 is a wasteful number, since it uses less digits than its factorization.

573213810121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441954890.

The product of its (nonzero) digits is 10080, while the sum is 34.

The spelling of 573213810121 in words is "five hundred seventy-three billion, two hundred thirteen million, eight hundred ten thousand, one hundred twenty-one".