321054314545 has 4 divisors (see below), whose sum is σ = 385265177460. Its totient is φ = 256843451632.

The previous prime is 321054314513. The next prime is 321054314549. The reversal of 321054314545 is 545413450123.

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 33299315361 + 287754999184 = 182481^2 + 536428^2 .

It is a cyclic number.

It is not a de Polignac number, because 321054314545 - 2⁵ = 321054314513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321054314549) 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, 32105431450 + ... + 32105431459.

It is an arithmetic number, because the mean of its divisors is an integer number (96316294365).

Almost surely, 2^321054314545 is an apocalyptic number.

It is an amenable number.

321054314545 is a deficient number, since it is larger than the sum of its proper divisors (64210862915).

321054314545 is an equidigital number, since it uses as much as digits as its factorization.

321054314545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64210862914.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 321054314545 its reverse (545413450123), we get a palindrome (866467764668).

The spelling of 321054314545 in words is "three hundred twenty-one billion, fifty-four million, three hundred fourteen thousand, five hundred forty-five".