321052540242505 has 16 divisors (see below), whose sum is σ = 390329582321664. Its totient is φ = 253485519577920.

The previous prime is 321052540242487. The next prime is 321052540242527. The reversal of 321052540242505 is 505242045250123.

It is not a de Polignac number, because 321052540242505 - 2⁷ = 321052540242377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1323424662 + ... + 1323667231.

It is an arithmetic number, because the mean of its divisors is an integer number (24395598895104).

Almost surely, 2^{321052540242505} is an apocalyptic number.

It is an amenable number.

321052540242505 is a deficient number, since it is larger than the sum of its proper divisors (69277042079159).

321052540242505 is a wasteful number, since it uses less digits than its factorization.

321052540242505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647092216.

The product of its (nonzero) digits is 480000, while the sum is 40.

Adding to 321052540242505 its reverse (505242045250123), we get a palindrome (826294585492628).

The spelling of 321052540242505 in words is "three hundred twenty-one trillion, fifty-two billion, five hundred forty million, two hundred forty-two thousand, five hundred five".