321055204534 has 4 divisors (see below), whose sum is σ = 481582806804. Its totient is φ = 160527602266.

The previous prime is 321055204523. The next prime is 321055204541. The reversal of 321055204534 is 435402550123.

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

It is a self number, because there is not a number n which added to its sum of digits gives 321055204534.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80263801132 + ... + 80263801135.

It is an arithmetic number, because the mean of its divisors is an integer number (120395701701).

Almost surely, 2^321055204534 is an apocalyptic number.

321055204534 is a deficient number, since it is larger than the sum of its proper divisors (160527602270).

321055204534 is a wasteful number, since it uses less digits than its factorization.

321055204534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160527602269.

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 321055204534 its reverse (435402550123), we get a palindrome (756457754657).

The spelling of 321055204534 in words is "three hundred twenty-one billion, fifty-five million, two hundred four thousand, five hundred thirty-four".